CN100499314C - Server, system and method supplied by wide-area instrumenation of electric power system - Google Patents
Server, system and method supplied by wide-area instrumenation of electric power system Download PDFInfo
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- CN100499314C CN100499314C CNB2005101070568A CN200510107056A CN100499314C CN 100499314 C CN100499314 C CN 100499314C CN B2005101070568 A CNB2005101070568 A CN B2005101070568A CN 200510107056 A CN200510107056 A CN 200510107056A CN 100499314 C CN100499314 C CN 100499314C
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol
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Abstract
The invention relates to a wide-area measurement service a server apparatus, a system, a method used in the electric power system, and also provides a state to reduce the time and the cost for measurement and to offer users the state of the electric power system independent of location and time. The server apparatus communicates via the communication network with the operation display devices of a plurality of users and a plurality of intelligence terminals. An electric quantity information autodyne and an object information autodyne via the communication network respectively receive the electric quantity information sent from the intelligence terminals, and the object information which indicates that the object range is deduced or predicted from the sending state from the operation display devices of the users. A deduction or prediction actuating unit deduces or predicts the state of the electric power system and equipments (transmission and distribution line, machine and devices, etc.) connected to the electric power system based on the received object information and the electric quantity information. An executing result sending device sends results produced by the deduction or prediction actuating unit to the operation display devices of the users via the communication network.
Description
Technical field
The present invention relates to according to comprising the quantity of electricity of electric system that transmission line and distribution line constitute, infer or predict this electric power system or the state of the equipment that is connected with this electric power system, inferring/predict the outcome the technology that offers user's display operating device by communication network.
Background technology
Measurement/the deduction of power system state is in the past carried out locally to the part of paying close attention to, and the electric weight of the electric current, voltage etc. of the part that special-purpose tester instrumentation pays close attention to is set.In addition, instrumentation result's parsing is undertaken by the expert at every turn, and special-purpose resolver perhaps is set separately.And then, being provided with in all ground that the position only is limited to Utilities Electric Co.s such as electric substation to the big superhigh pressure of electric power system entire effect, high-pressure system, power plant mostly of tester.
The measurement system of using as electric power system in the past, for example, in the electric power system measurement system of patent documentation 1 (spy opens flat 9-135543), instrumentation for the electric power system paid close attention to, obtain electric current, the voltage of bus, transmission line with being arranged on instrumentation assembly in the electric substation, these electric weight are delivered to system log (SYSLOG) device, the oscilloscope apparatus of this institute of electric substation.
In addition, in the stabilizing device and monitoring arrangement of the electric power system of patent documentation 2 (spy opens flat 2001-352679), for stability, the time series data of the active power that is observed in the power plant electric substation in electric power system, voltage etc. is taken into the system stability makeup via communicator puts according to the swing of observation data real time discriminating system.
; under the situation of the instrumentation that carries out electric power system with the method for conventional art as described above, deduction, parsing; mostly only think in electric power system existing problems or tester just is set when problem is arranged the user; in addition; most position of only paying close attention to; for example, only in the specific system of particular power company etc., tester is set locally.
But, electric power system is because connect many machines, transmission line, distribution line formation by intricately, for example, constitute by how tame the power transmission network intricately of electric power company be collaborative, so solve its problem in order to infer, resolve its state, mostly need long instrumentation, in addition, also need mostly if it were not for locality but the instrumentation of wide area.
Thereby, not high enough on instrumentation precision, parsing precision in the measuring method in the past of locality, short-term.In addition, in the prior art, because need the special-purpose measuring device or the expert of parsing, so spend a large amount of time and expense.And, because need expense like this, so there is the problem of impossible wide area instrumentation.And then, in the prior art, because locate to be provided with tester limitedly, so the electric weight that the user beyond the Utilities Electric Co. utilizes tester to obtain infers that power system state is difficult in all generating electric substations of Utilities Electric Co. etc.And in addition, exist from the time of instrumentation till infer/resolve long, Bu Fangbian problem for the user.
Summary of the invention
According to the present invention, a kind of electric power system wide area instrumentation service providing server is provided, according to comprising upper transmission system that at least one transmission line constitutes and being connected with upper transmission system, and the quantity of electricity of electric system of a plurality of the next distribution systems that constitute by distribution line, infer or predict this electric power system or the state of the equipment that is connected with this electric power system, inferring/predict the outcome the display operating device that offers the user via communication network, described electric power system is characterised in that with wide area instrumentation service providing server and comprises: the object information receiving system receives the object information of expression from the object range of the estimating state/prediction of above-mentioned user one side's display operating device transmission via above-mentioned communication network; The information about power receiving system receives from being connected with a plurality of above-mentioned the next distribution system of above-mentioned electric power system respectively and obtaining the information about power of a plurality of information terminals of the electric weight of each the next distribution system via above-mentioned communication network; Deduction/prediction final controlling element uses above-mentioned object information and the above-mentioned information about power receive, infers or predicts this electric power system or the state of the equipment that is connected with this electric power system; With the execution result dispensing device, above-mentioned deduction/prediction final controlling element produce deduction/predicting the outcome sends to above-mentioned user one side's display operating device via above-mentioned communication network, above-mentioned deduction/prediction final controlling element constitutes: will be on a plurality of the next distribution system that is connected same upper transmission system obtained magnitude of voltage or voltage phase difference and setting compare, the abnormality juding of being judged under the situation consistent with the magnitude relationship of setting unusual for this upper distribution system.
According to the present invention, provide a kind of electric power system to provide system with wide area instrumentation server, comprise: according to the quantity of electricity of electric system of a plurality of the next distribution systems that comprise the upper transmission system that at least one transmission line constitutes and be connected with upper transmission system and constitute by distribution line, infer or predict this electric power system or the state of the equipment that is connected with this electric power system, inferring/predict the outcome the server that offers user's display operating device via communication network; Be connected with a plurality of above-mentioned the next distribution system of above-mentioned electric power system respectively and obtain a plurality of information terminals of the electric weight of each the next distribution system, described electric power system is characterised in that with wide area instrumentation service provider system: above-mentioned server comprises: the object information receiving system receives the object information of expression from the object range of the condition estimating/prediction of above-mentioned user one side's display operating device transmission via above-mentioned communication network; The information about power receiving system receives from being connected with above-mentioned electric power system and obtaining the information about power of 1 information terminal of this quantity of electricity of electric system via above-mentioned communication network at least; Deduction/prediction final controlling element uses above-mentioned object information and the above-mentioned information about power receive, infers or predicts above-mentioned electric power system or the state of the equipment that is connected with this electric power system; With the execution result dispensing device, above-mentioned deduction/prediction final controlling element produce deduction/predicting the outcome sends to above-mentioned user one side's display operating device via above-mentioned communication network, above-mentioned deduction/prediction final controlling element constitutes: will be on a plurality of the next distribution system that is connected same upper transmission system obtained magnitude of voltage or voltage phase difference and setting compare, the abnormality juding of being judged under the situation consistent with the magnitude relationship of setting unusual for this upper transmission system.
According to the present invention, a kind of electric power system wide area instrumentation service providing method is provided, according to comprising upper transmission system that at least one transmission line constitutes and being connected with upper transmission system, and the quantity of electricity of electric system of a plurality of the next distribution systems that constitute by distribution line, infer or predict this electric power system or the state of the equipment that is connected with this electric power system, inferring/predict the outcome the display operating device that offers the user via communication network, described electric power system is characterised in that with wide area instrumentation service providing method: use to possess the object information receiving system, the information about power receiving system, the server of deduction/prediction final controlling element and execution result dispensing device, carry out following steps: the object information receiving step receives the object information of representing from the object range of the estimating state/prediction of above-mentioned user one side's display operating device transmission with above-mentioned object information receiving system via above-mentioned communication network; The information about power receiving step, with above-mentioned information about power receiving system, receive from being connected with a plurality of above-mentioned the next distribution system of above-mentioned electric power system respectively and obtaining the information about power of a plurality of information terminals of the electric weight of each the next distribution system via above-mentioned communication network; Deduction/prediction execution in step with above-mentioned deduction/prediction final controlling element, is used above-mentioned object information and the above-mentioned information about power receive, infers or predicts above-mentioned electric power system or the state of the equipment that is connected with this electric power system; With the execution result forwarding step, with above-mentioned execution result dispensing device, via above-mentioned communication network above-mentioned deduction/prediction final controlling element produce deduction/predicting the outcome sends to above-mentioned user one side's display operating device, above-mentioned deduction/prediction execution in step comprises: will be on a plurality of the next distribution system that is connected same upper transmission system obtained magnitude of voltage or voltage phase difference and setting compare, the unusual step of the abnormality juding of being judged under the situation consistent with the magnitude relationship of setting for this upper transmission system.
The present invention proposes for the problem that solves technology in the past as described above, the time and the expense that provide a kind of reduction to be used for instrumentation is provided its purpose, and, with electric power system that it doesn't matter place and time can offer the user to power system state with wide area instrumentation service providing server and system and method.
The present invention to achieve these goals, use is from the object information of user one side's display operating device transmission, with the information about power of using the information terminal that is connected with electric power system to obtain, deduction/prediction power system state, by its result is sent to user one side's display operating device via communication network, can simplify the equipment that instrumentation is used, and time till can shortening from the instrumentation of quantity of electricity of electric system to the deduction/prediction of its state and to the time that the user is provided till the information.
Electric power system of the present invention is characterised in that with wide area instrumentation service providing server: the quantity of electricity of electric system that comprises transmission line and distribution line formation in utilization, infer or predict this electric power system and the state of the equipment that is connected with this electric power system, inferring/predict the outcome that the electric power system of display operating device that offers the user via communication network with in the wide area instrumentation service providing server, comprises object information receiving system, information about power receiving system, deduction/prediction final controlling element, execution result dispensing device.
At this, the object information receiving system is to receive from user one side's display operating device via communication network to send, the device of object information of the object range of expression estimating state/prediction, information about power receiving system be via the communication network reception from be connected with electric power system and obtain this quantity of electricity of electric system at least more than or equal to the device of the information about power of one information terminal.In addition, deduction/prediction final controlling element is to use object information and the information about power that receives, infer or the device of the state of prediction electric power system or the equipment that is connected with this electric power system that the execution result dispensing device is the device of the display operating device that the deduction of deduction/prediction final controlling element generation/predict the outcome sent to user one side via communication network.
In addition, electric power system of the present invention is respectively grasped above-mentioned electric power system feature with wide area instrumentation service providing server with the wide area measurement service providing method from the viewpoint of the system that also comprises information terminal, the viewpoint of method with wide area instrumentation service provider system, electric power system.
If adopt above such the present invention, then can receive the object information that sends from user one side's display operating device via communication network, with from least more than one the information about power of information terminal that is connected with electric power system, use these information, electric power system or with equipment that electric power system is connected in, can infer or predict the state of the scope of the object that the user sets rapidly.The state of the scope of the object of then, can be rapidly the user being set deduction/predicting the outcome sends to user one side's display operating device via communication network.
And then important in the present invention term is defined as follows.
" equipment that is connected with electric power system " is the notion widely that comprises the various device of the electric line that is connected with electric power system, various machine, various devices etc.
" user " is the enterprise that comprises Utilities Electric Co., is connected with electric power system, and provides the side of needs of electric power by electric power system, makes/provide the notion widely of the enterprise of the device in the electric power system in addition.Specifically, so-called user for example is the enterprise with general industry of the electric enterprise of specific scale, electricity power enterprise, factory; To providing or enterprise, the side of needs of electrification of building management company, common equipment and local autonomy body etc.; Carry out electric power and entrust the enterprise that carries; Implement the manufacturing of the various devices relevant and enterprise of the consulting (consultant) relevant with system analysis etc. with the electric power quality with electric power system.
If employing the present invention, the object information of use from user one side's display operating device transmission then can be provided, with the information about power of using the information terminal that is connected with electric power system to obtain, deduction/prediction power system state, by its result is sent to user one side's display operating device via communication network, reduce the time and the expense that are used for instrumentation, and electric power system wide area instrumentation service providing server and the system and the method for power system state can irrespectively be provided to the user with place and time.
Description of drawings
Fig. 1 shows the electric power system the be suitable for basic execution mode of the present invention pie graph with wide area instrumentation service provider system.
Fig. 2 shows electric power system shown in Figure 1 flow chart with the summary of the action of wide area instrumentation service provider system.
Fig. 3 shows to be used to illustrate electric power system shown in Figure 1 pie graph with an example of the electric power system of the concrete deduction/prediction processing of wide area instrumentation service provider system.
Fig. 4 is a pie graph of showing the formation example of information terminal shown in Figure 1.
Fig. 5 is the figure of the electric weight computing of explanation information terminal shown in Figure 4.
Fig. 6 be show for infer with server shown in Figure 1/predict calculation process and the figure of an example of the data file made.
Fig. 7 is the figure that is illustrated in picture displayed example on the user's shown in Figure 1 display operating device, (a) is the set supporting picture example of object information, (b) is the display frame example of inferring/predicting the outcome.
Fig. 8 is an example of the deduction/prediction calculation process as server shown in Figure 1, the determination processing example (a) of carrying out according to phase difference is described and according to the curve chart of the determination processing example (b) of magnitude of voltage.
Fig. 9 is other example of the deduction/prediction calculation process of carrying out as server shown in Figure 1, and the curve chart of the determination processing example of carrying out according to frequency is described.
Figure 10 is as electric power system shown in Figure 1 example application with wide area instrumentation service provider system, shows the figure of the lamp cord voltage of needs side as the example of electric weight use.
Figure 11 is as electric power system shown in Figure 1 example application with wide area instrumentation service provider system, is illustrated in the figure that the example of filter is set on information terminal and the server.
Figure 12 is as electric power system shown in Figure 1 example application with wide area instrumentation service provider system, shows the figure of the example that generates power state quality map.
Figure 13 is as electric power system shown in Figure 1 example application with wide area instrumentation service provider system, shows the figure of an example of other power state quality map.
Figure 14 is as electric power system shown in Figure 1 example application with wide area instrumentation service provider system, shows the figure of the example that utilizes GPS receiving station.
Figure 15 is as electric power system shown in Figure 1 example application with wide area instrumentation service provider system, shows the figure of the example of examining money/request.
Figure 16 is as electric power system shown in Figure 1 example application with wide area instrumentation service provider system, the figure of the example of sharing of displaying terminal expense.
Embodiment
Below, specify the execution mode that has been suitable for electric power system usefulness wide area instrumentation service provider system of the present invention with reference to accompanying drawing.
[basic execution mode]
[formation]
Fig. 1 shows the electric power system the be suitable for basic execution mode of the present invention structure chart with wide area instrumentation service provider system (following abbreviate as aptly " system ").
As shown in Figure 1, the system of present embodiment comprises: electric power system wide area instrumentation service providing server (below, suitable abbreviate as " server ") 1; Communication network 2, several users' display operating device 3 (31～3n); Electric power system 4.At this, electric power system 4 comprises power transmission network 5 and (61～6n) constitute, and are connecting a plurality of information terminals 7 (71～7n) that cover the regional decentralized configuration of this wide area in this electric power system 4 as a plurality of power distribution networks 6 of its next system.
And, server 1, several users' display operating device 3 (31～3n) and many information terminals 7 (71～7n) are connected with communication network 2 respectively, server 1 is via communication network 2, with several users' display operating device 3 (31～3n) and a plurality of information terminal 7 (71～7n) communicate by letter.
In addition, server 1 comprises: information about power receiving system 11, object information receiving system 12, deduction/prediction final controlling element 13, and execution result dispensing device 14.At this, information about power receiving system 11 and object information receiving system 12 are object information of scope of the object of expression estimating state/prediction of being sent the information about power that is sent from information terminal 7 with from user's display operating device 3, the device that receives respectively via communication network 2.
In addition, deduction/prediction final controlling element 13 is to infer with information about power or the device of the state of prediction electric power system 4 or the equipment (transmission line/machine/device etc.) that is connected with electric power system 4 with the object information that receives, execution result dispensing device 14 are handles by deduction/prediction final controlling element 13 carry out deduction/predicting the outcome sends to the device of user's display operating device 3 via communication network 2.
And then server 1 specifically provides the combination of using the program of being becomed privileged to realize by computer with as the electric power system that is used to control it with the service of wide area instrumentation.In addition, also be that combination by computer and program realizes for user's display operating device 3, and can easily realize with general program.On the other hand, as communication network 2, specifically be envisioned for the communication infrastructure (infrastructure) of the wide regional coverage of internet etc.
[overview of action]
Fig. 2 shows above such electric power system flow chart of the action summary of wide area instrumentation service provider system.
As shown in Figure 2, (71～7n) often obtain in electric power system 4 this with predefined certain instrumentation cycle ("Yes" of S101) is provided with the electric weight of position, for example voltage, electric current (S102) to be configured in a plurality of information terminals in the electric power system 4.(71～7n) these external predefined each fixed transmission cycles or when obtaining the variation of electric weight ("Yes" of S103), the information about power of the electric weight that expression is got sends to server 1 (S104) via communication network 2 to information terminal 7.
In this case, in server 1, when receiving from information terminal 7 (behind 71～7n) the information about power ("Yes" of S201) by information about power receiving system 11, then information about power receiving system 11 is processed into the information about power that receives to handle and is easy to form, delivers to deduction/prediction final controlling element 13 (S202).
("Yes" of S205) in this case, server 1 usefulness object information receiving system 12 receives and comprises from the display operating device 3 (deduction/predictions request of 31～3n) object information (S205).Object information receiving system 12 is delivered to deduction/prediction final controlling element 13 to the object information that receives.
In deduction/prediction final controlling element 13, based on the represented object range of object information, determine needed information about power, based on fixed content, use needed electric weight according to concentrating, infer/predict computing (S206) from the electric weight of obtaining by information about power receiving system 11.By deduction/prediction final controlling element 13 carry out deduction/predicting the outcome sends to the user's of request source display operating device 3 (31～3n) (S207) via communication network 2 with execution result dispensing device 14.
[object lesson of deduction/prediction calculation process]
Below, explanation to the electric power system that connects concrete electric equipment A～D shown in Figure 3 under the situation of having set object range, based on information about power from information terminal 7 with structure as shown in Figure 4, an example when carrying out concrete deduction/prediction processing.
In electric power system shown in Figure 34,, only record and narrate 2 power distribution networks 61,62 of power transmission network 5 and coupled the next system, 4 electric equipment A～D that are connected with these 2 power distribution networks 61,62 from the viewpoint of simplified illustration.Electric equipment A～D specifically for example is factory, building, general family etc.In these electric equipments A～D, difference configuration information terminal 7A～7D.The formation of these information terminals 7A～7D is to be used to carry out time synchronized and positional information obtains from the GPS of gps satellite 10 electric wave.
Fig. 4 is the pie graph of the formation example of exhibition information terminal 7.As shown in Figure 4, information terminal 7 possesses electrical quantity sensor 701, sampler 702, electric weight calculation element 703, communicator 704, gps antenna 705, carries out following action by this formation.
At first, power consumption transducer 701 (if voltage then is PT, if electric current then is CT etc.) takes out the electric weight from electric power system 4 all the time, and the electric weight that takes out is taken a sample and digitlization with the sampling period of regulation with sampler 702.In this sampler 702, use the GPS electric wave that receives by gps antenna 705 to make sampling constantly consistent with other information terminal from gps satellite 10.
Below, use through sampling and digitized electric weight by electric weight calculation element 703, be phasor value (performance amplitude and phase place) with instantaneous value conversion.Fig. 5 is as the example of phasor value, be illustrated in the voltage on electric equipment A, B among the t1 constantly instantaneous value the sampling situation and be transformed to the amplitude V of the voltage of phasor value
A, V
BAnd phase theta
A, θ
BLike this, in information terminal 7, by using GPS, precise time is synchronous between the electric weight that can obtain obtaining in the place that separates.
And then, in the example of information terminal shown in Figure 47, device as the wide area time synchronized uses GPS, (the FM ripple receives and can obtain other device of exact time synchronization, adopt wired absolute moment to send the use etc. of service), its effect, effect too, under the situation of the device that uses such other, in Fig. 4, replace gps antenna 705 to connect other time synchronized hardware.
Information about power by the amplitude that obtains in electric weight calculation element 703, phase place performance sends to server 1 by communicator 704 via communication network 2 as mentioned above.And then, not only can obtain time synchronized, and because can also obtain the positional information of information terminal 7 simultaneously with GPS and other information terminal 7, thus from the communicator 704 of information terminal 7 positional information and information about power one in the same way server 1 send.
In server 1, if the information about power that power consumption information receiver 11 receives from information terminal 7, then information about power receiving system 11 is processed into information about power to handle and is easy to form, for example, as shown in Figure 6, make electric weight (the magnitude of voltage V that makes electric equipment A～D place
A～V
DPhase theta
A, θ
D) obtain the data file that constantly as one man is arranged with electric weight.
As mentioned above, the user is from these display operating device 3 access servers 1, can set the object range as the object of instrumentation/parsing as object information.At this, for example, suppose that user's handle is provided with position A, B, C is chosen as measurement/analysis object.In this case, comprise " user's name " and " position A, B, C are set " from this user's 3 of display operating devices, and the object information of " instrumentation time " sends to server 1 as deduction/predictions request as described above, received by the object information receiving system 12 of server 1.
In addition, when the set supporting of object information as described above,, can provide the positional information of each information terminal for the user.In this case, the user can utilize the positional information of each information terminal to carry out the setting of object information expeditiously.Perhaps, by can be to user and deduction/predictions request positional information of inquiry terminal information simultaneously, inferring/predicting the outcome provide the time, the positional information of each information terminal can be provided to the user simultaneously.
Fig. 7 is the figure that is illustrated in picture displayed on the display operating device 3, (a) is the set supporting picture example of object information, (b) is the display frame example of inferring/predicting the outcome.In the set supporting picture example shown in Fig. 7 (a), can set " instrumentation analysis object " and " instrumentation time range " as object information.
[according to deduction/prediction calculation process] from the information about power of a plurality of information terminals
The object information receiving system 12 of server 1 is then delivered to deduction/prediction final controlling element 13 to this object information after the such object information of setting that receives shown in Fig. 7 (a).Deduction/prediction final controlling element 13 uses this object information, data file with information about power shown in Figure 6, the electric quantity data of the set-point A～C of the corresponding information terminal 7 of extraction and " instrumentation analysis object " in corresponding " instrumentation time range ", that is, and the electric weight in A～C place: magnitude of voltage V
A～V
CAnd phase theta
A～θ
CDeduction/prediction final controlling element 13 then uses following formula (1), (2) to calculate the information of being extracted out at each constantly.
Δθ
AB＝|θ
A-θ
B| ...(1)
Δθ
CB＝|θ
C-θ
B| ...(2)
At this, deduction/prediction final controlling element 13 utilizes the voltage phase difference at the two ends of accident circuit to surpass the setting this point when having under the situation of accident in electric power system 4, is judged by the phase difference of following such voltage.
[according to the decision rule R1 of the phase difference of voltage]
If Δ θ
ABθ
K, and, Δ θ
CBθ
K,
It is unusual then to have an accident in power transmission network 5/install.
If Δ θ
ABθ
K, and, Δ θ
CB＜θ
K,
It is unusual then to have an accident/install on the distribution line that the device A in power distribution network 61 connects.
As concrete numerical value, for example, when setting θ for
KUnder the situation of=60 degree, if θ
AB=65 degree, θ
CB=64 degree are because θ
AB, θ
CBAll than θ
KGreatly, thus be judged to be in power transmission network 5 have an accident/install unusual.And then, when such judgement, in electric power system, there is transformer, the phenomenon of phase deviation is arranged.For the skew of the phase place in such stable state, need before above-mentioned computing current events, carry out revisal, and the concrete method of relevant this revisal computing is as narration after the formula (1a).
In addition, consider also that the judgement of following such magnitude of voltage is adopted in the voltage decline of the electric line that deduction/prediction final controlling element 13 utilization is connected with accident spot when accident because of the above-mentioned phase difference of accident conditions does not reach sufficient size.
[according to the decision rule R2 of magnitude of voltage]
If V
A＜V
K, and, V
B＜V
K, and, V
C＜V
K,
It is unusual then to have an accident in power transmission network 5/install.
If V
A＜V
K, and, V
C＜V
K, and, V
BV
K,
It is unusual then to have an accident/install on the distribution wire that the device A in power distribution network 61 connects.
As concrete numerical value, for example ought be set at V
KUnder the situation of=90V, if V
A=50V, V
B=65V, V
C=52V, then be judged to be in power transmission network 5 have an accident/install unusual.
Above-mentioned decision rule R1, R2 represent, it is the relevant of the electric weight observed in the power distribution network of a plurality of the next systems of connecting of power transmission network that deduction/prediction final controlling element 13 is taken at upper system, the item processing that has relevant item as upper system.
In addition, Fig. 8 (a) and (b) are in order to illustrate with the determination processing method of above-mentioned decision rule R1, R2 performance, to represent the variation of voltage phase difference and magnitude of voltage and the curve of abnormality detection/releasing point respectively.
Execution result dispensing device 14 is deductions that obtained by deduction/prediction final controlling element 13/predict the outcome, that is, more than the instrumentation value V of such electric weight
A～V
C, θ
A～θ
CAnd above-mentioned result of determination sends to the user's in deduction/predictions request source display operating device 3.
Thus, on the user's in deduction/predictions request source display operating device 3, the display frame of the deduction shown in the displayed map 7 (b)/predict the outcome, this user visually confirms the A～voltage in C place and the absolute phase of time synchronized set as " instrumentation analysis object " about having obtained easily, and whether accident has taken place or installs unusual information in which of power transmission network and power distribution network constantly in each of " instrumentation time range ".
[deduction/prediction calculation process of carrying out according to information about power] from an information terminal
The different algorithm of below representing deduction/prediction calculation process.In this was handled, above-mentioned θ A is carried out differential with the time asked frequency like that shown in following formula (3), utilizes the judgement of the value of this frequency.
d(θ
A)/dt＝f
A ...(3)
[according to the decision rule R3 of frequency]
If | f
A-commercial frequency |〉f
K,
Then in electric power system, have an accident or install unusual.
As concrete numerical value, for example, when setting f for
K=0.1Hz is under the situation of commercial frequency=50.0Hz, if f
A=50.2Hz then is judged to be and has an accident in electric power system or install unusual.
Fig. 9 is in order to illustrate with the determination processing method of above-mentioned decision rule R3 performance, to show the variation of frequency and the curve chart of abnormality detection/releasing point.As shown in Figure 9, along with accident or device are resumed frequency f unusually
ANear commercial frequency.
Like this, also can only use from the power information of an information terminal and infer power system state.
[effect]
As mentioned above, if employing present embodiment, the instrumentation that then uses wide regional coverage to disperse a plurality of information terminals of setting to carry out electric power system, the information about power of the wide area that use obtains and from user's object information, in electric power system, infer, predict the state of user rapidly and accurately, can provide this result rapidly to the user via communication network as the scope of object.Below, further describe the effect of present embodiment.
At first, under the situation of the anomaly in the electric power system such as unusual of the generation of particular system accident, control device, because can use, so can high accuracy infer state from electric weight instrumentation a plurality of information terminals and time synchronized.
In addition, in the prior art, instrumentation is limited at electric current, the voltage in the scope of bus in all electric substations of Utilities Electric Co., power transmission line etc., catch the anomaly of power transmission network, but as long as obtain electric weight, not all to be electric weight in the present invention, from the equipment of Utilities Electric Co. from the electric equipment that is connected with power distribution network, just can detect the unusual of power transmission network, from setup fee with and the viewpoint of user's convenience also than excellent in the past.
In addition, be configuration information terminal in the power distribution network only in the next system, need be not configuration information terminal in the power transmission network in upper system, just can infer the state of upper system accurately.Generally, because the information terminal setting of upper system is needed expense, so the effect of instrumentation fee cut is big.
In addition, the situation of a plurality of power transmission networks that many Utilities Electric Co.s run separately is as the situation of an electric power system, and same user can easily grasp comprehensively.Therefore, can realize and cover all suitable accordingly system employs of state of electric power system of the wide area of a plurality of power transmission networks.
And then, shown in above-mentioned formula (1)～(3), like that, use handy voltage, extract its amplitude and phase place out, determine the occurrence scope that accident/device is unusual, do not need to carry out the such electric current instrumentation of conventional art, the advantage that can simply carry out the electric weight instrumentation is arranged so have.
In addition, information terminal, server and user's display operating device is because be connected with communication network, so the user is only via the communication network access server, just can rake in the electric weight of the instrumentation object that needs, can power system state be easily grasped on ground with it doesn't matter place and time.
And then by using server acquisition of information location information of terminals, user and ISP (person of setting of information terminal) can easily confirm the position of each information terminal, have the operation of maintenance thus and are easy to advantage.
[example application]
Can there be various application in the system of above-mentioned execution mode.Below, so a plurality of example application are described in order.
[the example of the lamp cord voltage of needs side] as the electric weight use
As an example application of above-mentioned execution mode, as shown in figure 10, can think has the structure of the lamp cord of instrumentation needs side voltage as the electric weight use.As mentioned above, in technology in the past, in order to infer/predict power system state, generally be measuring device to be set measure busbar voltage in the electric substation of Utilities Electric Co., and in the present invention, power system state just can be inferred/be predicted to the lamp cord voltage of the needs side by instrumentation factory, general family etc.
Figure 10 is illustrated in the situation of configuration information terminal 7 in the general family, and its formation is the voltage that enters the lamp cord of family from distribution wire, is taken into information terminal 7 from socket 701a.Information terminal 7 is connected with internet 2a by modulator-demodulator 704a.At this, socket 701a and modulator-demodulator the 704a electrical quantity sensor 701 with shown in Figure 4 respectively are suitable with communicator 704.
In this case, information terminal 7 instrumentations are introduced in the voltage of the distribution wire of family, as mentioned above, calculate phasor value, at this moment, obtain time synchronized with GSP antenna 705.In addition, the phasor value that calculates sends to server 1 by the internet 2a that is connected with the personal computer of family with the fixed cycle.The action of server 1 one sides as previously mentioned.
If adopt this example, because can be from electric weight input such as the voltage of the lamp cord of the needs side of factory, family etc. as information terminal, so can also reduce setup fee uses, in addition, because the property of electrification company not, so Utilities Electric Co.'s enterprise, needs in addition can be to be provided with, the range of choice of instrumentation point also enlarges, and has the advantage that can carry out high-precision instrumentation.
[example of filter is set on information terminal and server]
An example application as above-mentioned execution mode, the electric weight of obtaining for information terminal 7, as shown in figure 11, consider that among at least one side of electric weight calculation element 703 each information terminal 7 in and the prediction of the deduction server 1 in final controlling element 13 structure of filter F being set needs electric weight composition signal component in addition so that remove when the deduction electric power system.
In this case, according to the analytic method that the user sets, change the characteristic of filter F.Under the situation of the characteristic of the filter F in changing information terminal 7, as shown in figure 11, the user can with " path P 1 " of direct visit information terminal, communication network 2 via " path P 2 ", and server 1 via one of " path P 3 " set change.In addition, under the situation of the characteristic of the filter F in changing server 1, the user can with object information receiving system 12 via " path P 4 " set change.
When at least one side of information terminal 7 and server 1, being provided with under the situation of filter F like this, can obtain following effect.
At first, illustrate filter F is arranged on effect under the situation in the information terminal 7.In become the electric weight instantaneous value of obtaining the electric power system of object from the present invention, various frequencies are arranged in that commercial frequency (50Hz or 60Hz) is overlapping in addition.Thereby, if for example be conceived to the interior accident phenomenon of electric power system, then carry out only near the filtering of taking out as main body the commercial frequency with the filter F in the electric weight calculation element 703 of information terminal 7.
Specifically, can use the digital filter shown in the non-patent literature 1 (" protection relay system engineering ", electric association, 108～110 pages) to realize.Electric weight calculation element 703 carries out the calculating of phasor value as described above after filtering.The information that the electric weight of the interference beyond the frequency band of paying close attention to has been removed in expression sends to server 1 from communicator 704.In addition, when carrying out specific number of times, for example under the situation of the observation of 3,5,7 times high order harmonic component, the user just can carry out the electric weight computing by filtering characteristic being changed into corresponding with it value.
Below, the effect when in server 1 filter F being set is described.If after the phasor value that server 1 power consumption information receiver 11 receives from each information terminal 7, the filter F filtering of the virtual value of the phasor value that then receives in the deduction/prediction final controlling element 13.For example, wave under the situation of phenomenon when the scintillation that in electric power system, produces or system, have, under the situation of paying close attention to it from the variation of the macrocyclic virtual value of hundreds of m second to several seconds, if remove other short-period signal, then can improve the precision of deduction/prediction computing thereafter.The change of filter characteristic is carried out via the object information receiving system 12 of server 1 by the user.
In addition, as the filter F on broader terms, the conversion process that is conceived to the frequency field of Fourier transform, small echo (wavelet) conversion etc. also can correspondingly be selected to set according to object.
Like this, by at least one side of information terminal 7 and server 1, filter F being set, can infer/predict the power system state of paying close attention to accurately.
[example of revisal phase deviation]
As an example application of above-mentioned execution mode,, in the deduction/prediction final controlling element 13 of server 1, consider the structure of revisal phase deviation for the phase deviation of the electric weight that takes place by the machine that is arranged in the electric power system.The machine that in electric power system, exists with 13 revisals of deduction/prediction final controlling element, for example, the situation of phase place rotation in transformer.The correction method of relevant such phase deviation as described below.
Shown in above-mentioned formula (1), (2), in deduction/prediction final controlling element 13, the phase place in instrumentation A, B place infers in the power transmission network whether accident is arranged.In this case, under A, B place all are arranged on situation in the needs side that is connected with power distribution network, because, the phase place rotation takes place owing to be present in the effect of the transformer between power transmission network and set-point, so in formula (1), (2), can not carry out the θ of decision threshold
KSetting.For fear of such inconvenience, as shown below, the value θ that in formula (1), has added the phase place rotation of revisal from power transmission network to the instrumentation place
α, θ
βFormula (1a) use as determine type.
Aθ
AB＝|(θ
A+θ
α)-(θ
B+θ
β)| ...(1a)
Also the formula that has added same revisal is used as determine type for formula (2).Computing is inferred/predicted to deduction/prediction final controlling element 13 according to the phase angle that obtains with the determine type that has added these revisals.
Like this, by the phase deviation of revisal, can infer/predict the power system state of paying close attention to accurately by the electric weight that is set at the machine generation in the electric power system.
[generating the example of power state quality map]
An example application as above-mentioned execution mode is considered such structure, promptly, in the electric weight calculation element 703 of information terminal 7, carrying out in the computing of electric power quality, as shown in figure 12, electric weight gathering-device 15 at the information terminal collection information about power that scope relevant when reducing with the electric power quality is set on server 1 one sides, the information about power that use is collected generates electric power quality state map with deduction/prediction final controlling element 13.
In Figure 12, (71～7n) electric weight calculation element 703 (Fig. 4) carries out computing shown below as " calculating the computing of electric power quality " and detects at least more than one a plurality of information terminals 7.
[wink is hanged down detection calculations]:
When using the detected voltage V of information terminal smaller or equal to setting VK, detecting is that instantaneous voltage reduces (wink is low).
[Voltage unbalance detection calculations]:
With information terminal detected 2 mutually or the voltage of 3 phases do not enter under the situation in the scope of setting, detecting is that Voltage unbalance takes place.
[high order harmonic component detection calculations]:
The size of the high order harmonic component of the relative commercial frequency of computing, under situation about stipulating more than the high order harmonic component generation certain level, detecting is that high order harmonic component takes place.
[flicker detection]:
Detect the voltage flicker phenomenon with information terminal.
[frequency change detection]:
Detection in information terminal from the situation of commercial frequency shift (FS) more than or equal to prescribed limit.
Below, illustrate that an information terminal 71 detects the situation of " wink is low ".When detecting with above-mentioned " wink is hanged down detection calculations " under the low situation of wink, information terminal 71 is low detection information and detect constantly, detect voltage and together send to server 1 via communication network 2 of the low wink of detecting in this wink of expression.This wink, low detection information was delivered to deduction/prediction final controlling element 13 from the information about power receiving system 11 in the server 1.
In this case, deduction/prediction final controlling element 13 is determined the information terminal of the scope relevant with information terminal 71.Specifically, as shown in figure 12, the power distribution network and the power transmission network that is connected with this power distribution network of information terminal 71 connections, and other distribution network that is connected with this power transmission network is determined the information terminal 72～7n that exists as scope in this scope as the object terminal.
Below, deduction/prediction final controlling element 13 is sending instruction via 15 transmissions of electric weight gathering-device for the electric weight that passes through definite like this information terminal 72～7n.Information terminal 72～7n then replys this instruction after receiving this electric weight transmission instruction via communication network 2, information terminal 71 is detected the information about power in the low moment in wink and the low wink of detecting that has or not in expression wink hangs down detection information send to server 1.Each information terminal 72～7n that 15 collections of server 1 power consumption gathering-device are sent hangs down detection information and information about power in wink.
Deduction/prediction final controlling element 13 uses the information of collecting, and generates the low map M that takes place of wink of the situation and the expression scope of instantaneous voltage reduction as shown in figure 12.In this Figure 12,, show that with dashed lines connects the map of voltages such as voltage reduction by 100%, 70%, 50% as the low example that map M takes place of wink.By using the low map that takes place of such wink, can visually grasp situation and scope that instantaneous voltage reduces easily.
Like this, under the situation that the electric power quality of instantaneous voltage reduction, Voltage unbalance, high order harmonic component generation etc. reduces, by generating the electric power quality state map of its situation of expression and scope, the user can easily visually grasp situation and scope that the electric power quality reduces from the electric power quality state map that generates.Thereby the user is based on the information of grasping from electric power quality status map, can implement the maintenance utilization of the various device that is connected with electric power system more reliably.
[utilizing the example of GPS receiving station]
As the example application of one of above-mentioned execution mode, as shown in figure 14, consider that its structure is reception to be set from the time information of GPS receiving station 8 and the radio receiver 706 of positional information on each information terminal 7.
In this structure, for example, the GPS receiving station 8 that has obtained time information and positional information from gps satellite 10 sends this time information and positional information to being set up nigh information terminal 71～73.In this case, radio receiver 706 and GPS receiving station 8 in the information terminal 71～73 carry out the distance that information exchange calculates GPS receiving station 8, according to calculate apart from above-mentioned time information that receives of revisal and positional information, obtain correct time information and positional information on the information terminal set-point.
Then, time information additionally constantly sends to server 1 and handles as absolute in information about power as mentioned above.In addition, positional information is sent to server 1 too and handles.By the positional information of delivering to, server 1 can automatically be obtained the position of each information terminal.
Like this, even in each information terminal, directly do not obtain time information from gps satellite, by receiving by near GPS receiving station 8, make the time information of each information terminal reception from this GPS receiving station 8, then there is no need on each information terminal, gps antenna to be set, have the advantage of configuration information terminal more cheaply.
In addition, because and time information while receiving position information, server 1 can automatically be known the position of each information terminal, so generate low map, higher harmonic voltage generation map as shown in figure 13 and other the electric power quality state map etc. of taking place of wink as shown in figure 12 easily.
And then, for the user, can confirm easily whether suitable position is provided with information terminal, has the advantage that convenience increases via communication network.
[examining the example of money/request]
As an example application of above-mentioned execution mode, as shown in figure 15, consider on server 1, to be provided with the structure of nuclear money/request unit 16.
In this structure, the user is via communication network 2 access servers 1, if the deduction that reference obtains with deduction/prediction final controlling element 13/predict the outcome, then the nuclear money/request unit 16 of server 1 the information of user's reference and number of times thereof as the reference content record, examine money according to what write down with reference to content, make the petition of giving the user from server supplier (person of setting of server 1 and information terminal 7 or network operator).
In this case, the concrete information of user's reference for example is information shown below.
" from the information about power (voltage, electric current phasor value etc.) of information terminal ",
" from the testing result (wink is hanged down detection, high order harmonic component detection etc.) of information terminal ",
" accident region estimation result ",
" electric power quality state map (the low map etc. that takes place of wink) ".
In addition, the petition of being made by nuclear money/request unit 16 is delivered to each user's display operating device 3 via communication network.
Like this, handle by in server 1, examining money/request, can automatically calculate the system's behaviour in service corresponding cost with the user accurately, because can confirm the expense of user and relevant using system easily, so be the high system of convenience for the user.In addition, for the ISP, also be, so convenience improves because can easily examine money to each user.And then by carrying out the prediction of electric power quality, the ISP obtains profit thus, and number is set can increases of information terminal can further improve precision of prediction so have, and further improves the advantage of user's convenience.
[carrying out the example of sharing of terminal expense]
As an example application of above-mentioned execution mode, as shown in figure 16, consider except that on server 1, appending the structure that terminal cost sharing device 17 also is set nuclear money/request unit 16.
In this structure, server 1 is before the user accepts the service of native system, in advance by communication network obtain the amount of information that obtains with information terminal in advance, user's information of the hope of representing the user relevant with the information content, set these user's information with terminal cost sharing device 17.In this case, terminal cost sharing device 17 is according to user's information of each user, the pro-rata expense relevant with manufacturing, setting, the during-operation service of information terminal between the user.According to the result of pro-rata, make to each user and manufacturing information terminal, setting, the relevant fee request book of during-operation service with examining money/request unit 16, send to the user.
Like this, by between several users, pro rata distribute the expense relevant according to the amount of information that obtains with information terminal, the information content with manufacturing, setting, the during-operation service of information terminal, can make the ISP not have the fund obligation ground utilization native system of transition, ISP, user can improve convenience.
[other execution mode]
And then the present invention is not limited to above-mentioned execution mode and distortion example, can implement diversified distortion example within the scope of the invention in addition.For example, can also suit to make up above-mentioned distortion example.
And then, the formation of electric power system usefulness wide area instrumentation service provider system in the above-described embodiment and its server of formation, information terminal and contents processing be an example only, as long as the information about power that uses the object information that sends from user one side's display operating device, obtains by the information terminal that is connected with electric power system, infer/predict the state of electric weight system, via communication network this result is sent to user one side's display operating device, result that it is concrete and contents processing can freely change.
Claims (11)
1. an electric power system is with wide area instrumentation service providing server, quantity of electricity of electric system according to a plurality of the next distribution systems that comprise the upper transmission system that at least one transmission line constitutes and be connected with upper transmission system and constitute by distribution line, infer or predict this electric power system or the state of the equipment that is connected with this electric power system, inferring/predict the outcome the display operating device that offers the user via communication network, described electric power system is characterised in that with wide area instrumentation service providing server and comprises:
The object information receiving system receives the object information of expression from the object range of the estimating state/prediction of above-mentioned user one side's display operating device transmission via above-mentioned communication network;
The information about power receiving system receives from being connected with a plurality of above-mentioned the next distribution system of above-mentioned electric power system respectively and obtaining the information about power of a plurality of information terminals of the electric weight of each the next distribution system via above-mentioned communication network;
Deduction/prediction final controlling element uses above-mentioned object information and the above-mentioned information about power receive, infers or predicts this electric power system or the state of the equipment that is connected with this electric power system; With
The execution result dispensing device, above-mentioned deduction/prediction final controlling element produce deduction/predicting the outcome sends to above-mentioned user one side's display operating device via above-mentioned communication network,
Above-mentioned deduction/prediction final controlling element constitutes: will be on a plurality of the next distribution system that is connected same upper transmission system obtained magnitude of voltage or voltage phase difference and setting compare, the abnormality juding of being judged under the situation consistent with the magnitude relationship of setting unusual for this upper transmission system.
2. electric power system according to claim 1 wide area instrumentation service providing server is characterized in that:
The electric weight of above-mentioned each the next distribution system comprises the lamp cord voltage of needs side.
3. electric power system according to claim 1 wide area instrumentation service providing server is characterized in that:
The electric weight of above-mentioned each the next distribution system comprises by the obtained a plurality of electric weight of the time synchronized of a plurality of above-mentioned information terminals.
4. electric power system according to claim 1 wide area instrumentation service providing server is characterized in that:
At least one side of above-mentioned information terminal and above-mentioned deduction/prediction final controlling element comprises the filter apparatus of removing interference signal from the electric weight of above-mentioned each the next distribution system.
5. electric power system according to claim 1 wide area instrumentation service providing server is characterized in that:
Above-mentioned deduction/prediction final controlling element constitutes: revisal is by the phase deviation that is arranged on the electric weight that machine took place in the above-mentioned electric power system.
6. electric power system according to claim 1 wide area instrumentation service providing server is characterized in that comprising:
The electric weight gathering-device, in above-mentioned information terminal, detect under the situation of electric power quality reduction, from the information terminal that comprises distribution system, upper transmission system that is connected with this distribution system that is connected in the information terminal that detects this electric power quality reduction and the prescribed limit of other the next distribution system that is connected with this upper transmission system, collect information about power
Constituting of above-mentioned deduction/prediction final controlling element: use the above-mentioned information about power of collecting to generate electric power quality state map.
7. electric power system according to claim 6 wide area instrumentation service providing server is characterized in that:
Constituting of above-mentioned electric weight gathering-device: under the situation that detects instantaneous voltage decline in the above-mentioned information terminal of the electric weight of obtaining needs side, collection information about power and wink hang down detection information from comprise the information terminal that is connected in distribution system, upper transmission system that is connected with this distribution system that detects the information terminal that this instantaneous voltage descends and the prescribed limit of other the next distribution system that is connected with this upper transmission system
Constituting of above-mentioned deduction/prediction final controlling element: use above-mentioned information about power and low low generation of detection information generation wink of the above-mentioned wink map collected.
8. an electric power system provides system with wide area instrumentation server, comprise: according to the quantity of electricity of electric system of a plurality of the next distribution systems that comprise the upper transmission system that at least one transmission line constitutes and be connected with upper transmission system and constitute by distribution line, infer or predict this electric power system or the state of the equipment that is connected with this electric power system, inferring/predict the outcome the server that offers user's display operating device via communication network; Be connected with a plurality of above-mentioned the next distribution system of above-mentioned electric power system respectively and obtain a plurality of information terminals of the electric weight of each the next distribution system, described electric power system is characterised in that with wide area instrumentation service provider system:
Above-mentioned server comprises:
The object information receiving system receives the object information of expression from the object range of the condition estimating/prediction of above-mentioned user one side's display operating device transmission via above-mentioned communication network;
The information about power receiving system receives from being connected with above-mentioned electric power system and obtaining the information about power of 1 information terminal of this quantity of electricity of electric system via above-mentioned communication network at least;
Deduction/prediction final controlling element uses above-mentioned object information and the above-mentioned information about power receive, infers or predicts above-mentioned electric power system or the state of the equipment that is connected with this electric power system; With
The execution result dispensing device, above-mentioned deduction/prediction final controlling element produce deduction/predicting the outcome sends to above-mentioned user one side's display operating device via above-mentioned communication network,
Above-mentioned deduction/prediction final controlling element constitutes: will be on a plurality of the next distribution system that is connected same upper transmission system obtained magnitude of voltage or voltage phase difference and setting compare, the abnormality juding of being judged under the situation consistent with the magnitude relationship of setting unusual for this upper transmission system.
9. electric power system according to claim 8 provides system with wide area instrumentation server, it is characterized in that:
Above-mentioned information terminal comprises and utilizes the GPS electric wave to carry out the GPS receiving system that time synchronized and positional information obtain.
10. electric power system according to claim 8 provides system with wide area instrumentation server, it is characterized in that above-mentioned information terminal comprises:
Radio receiver is from the GPS receiving station information time of reception and positional information is carried out time synchronized and positional information obtains.
11. electric power system wide area instrumentation service providing method, quantity of electricity of electric system according to a plurality of the next distribution systems that comprise the upper transmission system that at least one transmission line constitutes and be connected with upper transmission system and constitute by distribution line, infer or predict this electric power system or the state of the equipment that is connected with this electric power system, inferring/predict the outcome the display operating device that offers the user via communication network, described electric power system is characterised in that with wide area instrumentation service providing method:
Use possesses the server of object information receiving system, information about power receiving system, deduction/prediction final controlling element and execution result dispensing device, carries out following steps:
The object information receiving step receives the object information of the object range of representing estimating state/prediction of sending from above-mentioned user one side's display operating device via above-mentioned communication network with above-mentioned object information receiving system;
The information about power receiving step, with above-mentioned information about power receiving system, receive from being connected with a plurality of above-mentioned the next distribution system of above-mentioned electric power system respectively and obtaining the information about power of a plurality of information terminals of the electric weight of each the next distribution system via above-mentioned communication network;
Deduction/prediction execution in step with above-mentioned deduction/prediction final controlling element, is used above-mentioned object information and the above-mentioned information about power receive, infers or predicts above-mentioned electric power system or the state of the equipment that is connected with this electric power system; With
The execution result forwarding step, with above-mentioned execution result dispensing device, via above-mentioned communication network above-mentioned deduction/prediction final controlling element produce deduction/predicting the outcome sends to above-mentioned user one side's display operating device,
Above-mentioned deduction/prediction execution in step comprises: will be on a plurality of the next distribution system that is connected same upper transmission system obtained magnitude of voltage or voltage phase difference and setting compare, the unusual step of the abnormality juding of being judged under the situation consistent with the magnitude relationship of setting for this upper transmission system.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5760492A (en) * | 1995-01-17 | 1998-06-02 | Hitachi, Ltd. | Control system for power transmission and distribution system |
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- 2005-09-21 KR KR1020050087679A patent/KR100714155B1/en active IP Right Grant
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20030001754A1 (en) * | 1990-02-15 | 2003-01-02 | Itron, Inc. | Wide area communications network for remote data generating stations |
| US6496342B1 (en) * | 1999-02-12 | 2002-12-17 | Bitronics Inc. | Distributed monitoring and protection system for a distributed power network |
| CN1369943A (en) * | 2001-02-06 | 2002-09-18 | 株式会社东芝 | Power system monitoring system and memory medium for storing program for such system |
| CN1405944A (en) * | 2001-09-14 | 2003-03-26 | 三菱电机株式会社 | Electric-power system management method and said electric-power management system |
| CN1416197A (en) * | 2001-11-04 | 2003-05-07 | 深圳市领步科技有限公司 | System for on-line monitoring quality of electricity and monitoring method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100714155B1 (en) | 2007-05-07 |
| JP4406346B2 (en) | 2010-01-27 |
| JP2006109545A (en) | 2006-04-20 |
| CN1756026A (en) | 2006-04-05 |
| KR20060051476A (en) | 2006-05-19 |
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