CN102664466A - Feeder line automation system - Google Patents
Feeder line automation system Download PDFInfo
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- CN102664466A CN102664466A CN2012101699993A CN201210169999A CN102664466A CN 102664466 A CN102664466 A CN 102664466A CN 2012101699993 A CN2012101699993 A CN 2012101699993A CN 201210169999 A CN201210169999 A CN 201210169999A CN 102664466 A CN102664466 A CN 102664466A
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Abstract
The invention discloses a feeder line automation system which comprises a plurality of feeder line measurement and control terminals and a plurality of fault processing devices. The feeder line measurement and control terminals are used for detecting fault information, and the fault processing devices are respectively connected with the feeder line measurement and control terminals via communication networks, acquire the switch information and fault information transmitted by the feeder line measurement and control terminals and respectively perform fault processing according to the received information. The feeder line automation system has the advantages that each fault processing device can independently acquire all the information of the whole feeder line automation system and process the fault accidents for the system. When any fault processing device goes wrong or the communication is interrupted, other normal fault processing devices can still finish the work on fault positioning, isolation and power restoration, so that the feeder line automation system is more reliable. Besides, no special performances are required for the existing feeder line measurement and control terminals, no changes are required, and the system configurations are simple and feasible.
Description
Technical field
The present invention relates to electric power system distribution automation field, in particular, relate to a kind of feed line automatization system.
Background technology
Feeder automation is meant transformer station's outlet to the feeder line automation between the user power utilization equipment, and its content can reduce two broad aspect: the one, and the user under the normal condition detects, data is measured and operation is optimized; The 2nd, the fault detect under the fault state, Fault Isolation, the control of locating and restore electricity.In the distribution work of reality, in order to ensure user's the comprehensive electricity quality of using, the troubleshooting performance of feed line automatization system becomes the important indicator of power distribution automation task.
There are two kinds of feed line automatization systems, a kind of feed line automatization system that is based on main website in the prior art; A kind of feed line automatization system that is based on distributed reciprocity communication.Wherein, generally comprise three-decker based on the feed line automatization system of main website, that is: main website layer, substation layer and terminating layer rely on communication system and carry out the mutual of information between the different layers; Generally; Obtaining of fault message realized at the terminal; The location of fault point and the recovery control that isolation, main website realize non-fault zone are realized in the substation, and have only the intercommunication mutually through main website layer, substation layer and terminating layer to cooperate, and could accomplish the each task of troubleshooting.For feed line automatization system, need each feeder line detection and control terminal device all to possess the ability of reciprocity communication based on distributed reciprocity communication; When line failure, work such as the mutual communication through each feeder line detection and control terminal device accomplishes failure location and Fault Isolation, restore electricity.
Can find out in sum; When adopting feed line automatization system handling failure of the prior art; All have certain disadvantages, that is: based on the feed line automatization system of main website because too big, when main station system collapses to the dependence of whole main website; Whole feed line automatization system will be paralysed fully, so poor reliability; And based on the feed line automatization system of distributed reciprocity communication, owing to need all terminal installations all to possess the peer-to-peer communications ability, therefore the performance requirement to terminal installation is high, and its configuration is complicated.
Summary of the invention
In view of this, the invention provides a kind of feed line automatization system, feed line automatization system poor reliability of the prior art and terminal installation performance requirement are high to overcome, the configuration complicated problems.
For realizing above-mentioned purpose, the present invention provides following technical scheme:
A kind of feed line automatization system comprises:
The feeder line detection and control terminal of a plurality of detection failure information;
The a plurality of fault treating apparatus that link to each other with said feeder line detection and control terminal respectively through communication network; Said a plurality of fault treating apparatus is collected position of the switch information and the fault message that said feeder line detection and control terminal sends respectively; According to said position of the switch information and fault message fault location point; And the feeder line detection and control terminal at the switch place of confirming to link to each other with said fault point is pending feeder line detection and control terminal, and said a plurality of fault treating apparatus are respectively to said pending feeder line detection and control terminal transmission isolation order;
When said pending feeder line detection and control terminal receives the isolation order of any transmission in said a plurality of fault treating apparatus, carry out said isolation order, and after isolating successfully, to said a plurality of fault treating apparatus feedback isolation successful information;
After said a plurality of fault treating apparatus receives said isolation successful information, recover the power supply of non-fault zone according to preset recovery scheme.
Optional, said fault treating apparatus comprises:
Collect position of the switch information and fault message that said feeder line detection and control terminal reports; And after processor is judged position of failure point and is confirmed pending feeder line detection and control terminal; Send isolation order and give said pending feeder line detection and control terminal, and receive the information interface of the isolation successful information of said pending feeder line detection and control terminal feedback;
According to said position of the switch information and fault message fault location point and definite pending feeder line detection and control terminal; After the isolation successful information that receives said pending feeder line detection and control terminal feedback, start the processor that preset recovery scheme recovers the power supply of non-fault zone.
Optional, said processor comprises:
Said position of the switch information and fault message are carried out analyzing and processing, judge the position at place, fault point, and the feeder line detection and control terminal at the switch that will link to each other with said fault point place is confirmed as the fault location processor of pending feeder line detection and control terminal;
The order that produces isolation order produces processor;
After receiving the isolation successful information of said pending feeder line detection and control terminal feedback, start the processor that restores electricity that preset recovery scheme recovers the power supply of non-fault zone.
Optional, said order produces processor and comprises:
Judge that the said isolating switch that needs is the judge module of on-load switch or circuit breaker;
At the said switch that links to each other with the fault point is under the situation of on-load switch: produce the disconnection master switch order that sends to transformer station; And after receiving the disconnection master switch successful information that transformer station returns; Generation sends to the isolation order of pending feeder line detection and control terminal, and is under the situation of circuit breaker at the said switch that links to each other with the fault point: directly produce the order generation module that sends to pending feeder line detection and control terminal.
Optional, said a plurality of fault treating apparatus are arranged in the transformer station or the node location of distribution line.
Optional, said communication network is a fiber optic Ethernet.
Optional, said feeder line detection and control terminal sends position of the switch information and fault message, comprising:
The feeder line detection and control terminal sends position of the switch information and fault message according to preset message length.
Can know via above-mentioned technical scheme; Compared with prior art; The embodiment of the invention discloses a kind of feed line automatization system; The feeder line detection and control terminal that said feed line automatization system comprises a plurality of detection failure information with link to each other with said feeder line detection and control terminal respectively through communication network, collect position of the switch information and fault message that said feeder line detection and control terminal sends, and a plurality of fault treating apparatus that carry out troubleshooting according to the information that receives respectively.The disclosed feed line automatization system of the embodiment of the invention; Each fault treating apparatus can both independently obtain the full detail of whole feed line automatization system; The event of failure of concurrency processing system; When any one fault treating apparatus goes wrong or during communication disruption, the work that still also has other normal fault treating apparatus can accomplish failure location, isolate and restore electricity makes that this feed line automatization system is more reliable; Simultaneously, the disclosed feed line automatization system of the embodiment of the invention does not have the property requirement to existing feeder line detection and control terminal, need not transform it, and system configuration is simple.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is embodiments of the invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to the accompanying drawing that provides.
Fig. 1 is the feed line automatization system topology layout sketch map of the disclosed multiple faults processing unit of the embodiment of the invention;
Fig. 2 is the disclosed fault treating apparatus structural representation of the embodiment of the invention;
Fig. 3 is the disclosed processor structure sketch map of the embodiment of the invention;
Fig. 4 is the structural representation that the disclosed order of the embodiment of the invention produces processor.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment one
Fig. 1 is the feed line automatization system structural representation of the disclosed multiple faults processing unit of the embodiment of the invention; Referring to shown in Figure 1; Said feed line automatization system comprises the feeder line detection and control terminal DT1 ~ DT6 of a plurality of detection failure information; Also comprise a plurality of fault treating apparatus 1 ~ 3 that link to each other with said feeder line detection and control terminal respectively through communication network; Said a plurality of fault treating apparatus is collected position of the switch information and the fault message that said feeder line detection and control terminal sends respectively; According to said position of the switch information and fault message fault location point, and the feeder line detection and control terminal at the switch place of confirming to link to each other with said fault point is pending feeder line detection and control terminal, and said a plurality of fault treating apparatus are respectively to said pending feeder line detection and control terminal transmission isolation order;
When said pending feeder line detection and control terminal receives the isolation order of any transmission in said a plurality of fault treating apparatus, carry out said isolation order, and after isolating successfully, to said a plurality of fault treating apparatus feedback isolation successful information;
After said a plurality of fault treating apparatus receives said isolation successful information, recover the power supply of non-fault zone according to preset recovery scheme.
Certainly; Fig. 1 is merely an exemplary plot of the feed line automatization system that is provided with 3 fault treating apparatus; Based on design of the present invention; 5,6 or arbitrarily individual fault treating apparatus can be set in the feed line automatization system, and 3 fault treating apparatus among Fig. 1 are separately positioned near 3 power supply point D1 ~ D3;
Wherein, Comprise two or three switches in each feeder line detection and control terminal, comprise two switches of K1-1 and K1-2 among the DTU1, comprise K2-1, K2-2 and three switches of K2-3 among the DTU2; DTU3 comprises K3-1 and two switches of K3-2; Comprise two switches of K4-1 and K4-2 among the DTU4, comprise two switches of K5-1 and K5-2 among the DTU5, comprise two switches of K6-1 and K6-2 among the DTU6.
Under situation about breaking down; A plurality of fault treating apparatus are collected position of the switch information and the fault message on the communication network respectively; And respectively detected event of failure is handled; When pending fault detection and control terminal receives the isolation order that any fault treating apparatus issues; Carry out said isolation order, if said pending feeder line detection and control terminal is not just being carried out when in carrying out the Preset Time length that said isolation order begins, receiving the identical isolation order that issues from different fault treating apparatus once more or repeatedly.
Wherein, The concrete structure of said feeder line detection and control terminal can comprise: be used for detection failure information tracer, send position of the switch information and fault message according to preset message length, and message interface that receives the order that fault treating apparatus sends and the command execution processor of carrying out the order that said fault treating apparatus sends.
In the said feed line automatization system, a plurality of fault treating apparatus can after collect fault message respectively, and independently carry out fault analysis and handling work separately; Because the speed that diffuses information of communication network is very fast, and feed line automatization system is limited in scope, generally speaking; Each fault treating apparatus is collected fault message; Very close with the time that fault is handled it, and each fault treating apparatus independently carries out troubleshooting work, therefore; Same at short notice feeder line detection and control terminal possibly received the identical order that comes from the different faults processing unit; For example receive in the DTU2 short time period and keep apart the order of closing K2-2 5 times that DTU2 no longer carries out the same commands that follow-up one section utmost point received in the short time so after receiving isolating switch K2-2 order the earliest and carrying out; Mentioned short time period can be confirmed through experiment by design O&M personnel, and be stored in advance in the feeder line detection and control terminal as preset time span.
Wherein, said communication network is preferably fiber optic Ethernet; In the communication of fiber optic Ethernet; The socket that can set up based on TPC (transmission control protocol) connects; With the fault treating apparatus is server; The feeder line detection and control terminal is a client, and each fault treating apparatus has set up all independently with each feeder line detection and control terminal that socket is connected, with the relevant information of special transmission fault incident; The transmission of information is to transmit according to preset message length between said fault treating apparatus and the said feeder line detection and control terminal.
For the ease of understanding the course of work of the disclosed feed line automatization system handling failure of the embodiment of the invention, illustrate below; Referring to shown in Figure 1, assumed fault point is between K switch 2-2 and K switch 3-1, when breaking down; Because power supply point D2 and D3 break off, have only power supply point D1 one side to have electric current to flow out, when arriving the fault point; Be short-circuited, this moment, the electric current through K switch 1-1, K1-2, K2-1 and K2-2 was because short circuit and electric current is excessive will produce fault-signal so; DTU1 and the DTU2 that detect fault-signal this moment can report 3 fault treating apparatus with fault-signal and corresponding switch position signalling, and fault treating apparatus is according to network topology structure and position of the switch information, and the localization of faults is between K switch 2-2 and K switch 3-1; And then issue the order of isolating switch K2-2 and isolating switch K3-1 respectively to DTU2 and DTU3; Under 3 normal situation of fault treating apparatus, DTU2 and DTU3 can almost receive the order of 3 isolating switch K2-2 and K switch 23-1 at one time respectively, but only carry out once; After the success to be isolated; Notice is given 3 fault treating apparatus, according to preset recovery scheme, recovers the power supply of non-fault zone by 3 fault treating apparatus.
Wherein, said a plurality of fault treating apparatus can be arranged in the transformer station, and promptly the power supply point place also can be arranged on the crucial node location of circuit; In a schematic example, the structure of said fault treating apparatus can be referring to Fig. 2, and Fig. 2 is the disclosed fault treating apparatus structural representation of the embodiment of the invention, and as shown in Figure 2, fault treating apparatus 20 can comprise:
Collect position of the switch information and fault message that said feeder line detection and control terminal reports; And after processor is judged the position of failure point soldier and is confirmed pending feeder line detection and control terminal; Send isolation order and give said pending feeder line detection and control terminal, and receive the information interface 201 of the isolation successful information of said pending feeder line detection and control terminal feedback;
The remote command that fault message that said information interface 201 responsible all feeder line detection and control terminals of reception report and the processor in position of the switch information and the transmission fault treating apparatus are handed down to the feeder line detection and control terminal; Said processor combines judgement with fault message and position of the switch information, and the localization of faults is between which switch;
According to said position of the switch information and fault message fault location point and definite pending feeder line detection and control terminal; After the isolation successful information that receives said pending feeder line detection and control terminal feedback, start the processor 202 that preset recovery scheme recovers the power supply of non-fault zone;
Said processor is through after the analysis and judgement to fault message and position of the switch information; The localization of faults is between which switch; Further need to confirm the switch of isolation, issue isolation order then and give management the said feeder line detection and control terminal that needs isolating switch, promptly pending feeder line detection and control terminal; So that said pending feeder line detection and control terminal is carried out isolation order, break off the said switch that needs isolation; Pending feeder line detection and control terminal is after the switch isolation success that needs are isolated; Can send and isolate successful information to a plurality of fault treating apparatus; After a plurality of fault treating apparatus receive and isolate successful information; According to the switch of having isolated, transfer the service restoration scheme of corresponding preset, make the electricity consumption of non-fault zone recover normal.
In a schematic example, the concrete structure of said processor 202 can be referring to Fig. 3, and Fig. 3 is the disclosed processor structure sketch map of the embodiment of the invention, and referring to shown in Figure 3, said processor 202 can comprise:
Said position of the switch information and fault message are carried out analyzing and processing, judge the position at place, fault point, and the feeder line detection and control terminal at the switch that will link to each other with said fault point place is confirmed as the fault location processor 301 of pending feeder line detection and control terminal;
The order that produces isolation order produces processor 302;
A schematic concrete structure of said order generation processor 302 can be referring to Fig. 4, and Fig. 4 is the structural representation that the disclosed order of the embodiment of the invention produces processor, and is as shown in Figure 4, and said order produces processor 302 and can comprise:
Judge that the said isolating switch that needs is the judge module 401 of on-load switch or circuit breaker;
Certainly, said judge module just is used for accomplishing it and judges that the said isolating switch that needs is the work of on-load switch or circuit breaker, so long as just accomplished above-mentioned work parts can, decision processor for example;
At the said switch that links to each other with the fault point is under the situation of on-load switch: produce the disconnection master switch order that sends to transformer station; And after receiving the disconnection master switch successful information that transformer station returns; Generation sends to the isolation order of pending feeder line detection and control terminal, and is under the situation of circuit breaker at the said switch that links to each other with the fault point: directly produce the order generation module 402 that sends to pending feeder line detection and control terminal;
At the said isolating switch that needs is under the situation of on-load switch, in order to ensure safety, at first need be with power supply point, and promptly the master switch of transformer station breaks off, and under the situation that master switch breaks off, can the switch that meets that need to isolate be broken off; Said order generation module also can be called power on command and produce processor;
After receiving the isolation successful information of said feeder line detection and control terminal feedback, start the processor 303 that restores electricity that preset recovery scheme recovers the power supply of non-fault zone.
In the embodiment of the invention, each fault treating apparatus can both obtain the full detail of whole feed line automatization system, the function that can more comprehensively accomplish troubleshooting and restore electricity; Because what fault treating apparatus obtained is the information of whole feed line automatization system; When any one fault treating apparatus goes wrong or during communication disruption; Still the work that also has other normal fault treating apparatus can accomplish failure location, isolate and restore electricity makes that this feed line automatization system is more reliable; Simultaneously, the disclosed feed line automatization system of the embodiment of the invention does not have the property requirement to existing feeder line detection and control terminal, need not transform it, and system configuration is simple.
Also need to prove; In this article; Relational terms such as first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint relation or the order that has any this reality between these entities or the operation.And; Term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability; Thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements; But also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.Under the situation that do not having much more more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises said key element and also have other identical element.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (7)
1. a feed line automatization system is characterized in that, comprising:
The feeder line detection and control terminal of a plurality of detection failure information;
The a plurality of fault treating apparatus that link to each other with said feeder line detection and control terminal respectively through communication network; Said a plurality of fault treating apparatus is collected position of the switch information and the fault message that said feeder line detection and control terminal sends respectively; According to said position of the switch information and fault message fault location point; And the feeder line detection and control terminal at the switch place of confirming to link to each other with said fault point is pending feeder line detection and control terminal, and said a plurality of fault treating apparatus are respectively to said pending feeder line detection and control terminal transmission isolation order;
When said pending feeder line detection and control terminal receives the isolation order of any transmission in said a plurality of fault treating apparatus, carry out said isolation order, and after isolating successfully, to said a plurality of fault treating apparatus feedback isolation successful information;
After said a plurality of fault treating apparatus receives said isolation successful information, recover the power supply of non-fault zone according to preset recovery scheme.
2. system according to claim 1 is characterized in that, said fault treating apparatus comprises:
Collect position of the switch information and fault message that said feeder line detection and control terminal reports; And after processor is judged position of failure point and is confirmed pending feeder line detection and control terminal; Send isolation order and give said pending feeder line detection and control terminal, and receive the information interface of the isolation successful information of said pending feeder line detection and control terminal feedback;
According to said position of the switch information and fault message fault location point and definite pending feeder line detection and control terminal; After the isolation successful information that receives said pending feeder line detection and control terminal feedback, start the processor that preset recovery scheme recovers the power supply of non-fault zone.
3. method according to claim 2 is characterized in that, said processor comprises:
Said position of the switch information and fault message are carried out analyzing and processing, judge the position at place, fault point, and the feeder line detection and control terminal at the switch that will link to each other with said fault point place is confirmed as the fault location processor of pending feeder line detection and control terminal;
The order that produces isolation order produces processor;
After receiving the isolation successful information of said pending feeder line detection and control terminal feedback, start the processor that restores electricity that preset recovery scheme recovers the power supply of non-fault zone.
4. method according to claim 3 is characterized in that, said order produces processor and comprises:
Judge that the said isolating switch that needs is the judge module of on-load switch or circuit breaker;
At the said switch that links to each other with the fault point is under the situation of on-load switch: produce the disconnection master switch order that sends to transformer station; And after receiving the disconnection master switch successful information that transformer station returns; Generation sends to the isolation order of pending feeder line detection and control terminal, and is under the situation of circuit breaker at the said switch that links to each other with the fault point: directly produce the order generation module that sends to pending feeder line detection and control terminal.
5. system according to claim 1 is characterized in that, said a plurality of fault treating apparatus are arranged in the transformer station or the node location of distribution line.
6. system according to claim 1 is characterized in that, said communication network is a fiber optic Ethernet.
7. system according to claim 1 is characterized in that, said feeder line detection and control terminal comprises:
The tracer that is used for detection failure information;
Message length according to preset sends position of the switch information and fault message, and receives the message interface of the order of fault treating apparatus transmission;
Carry out the command execution processor of the order of said fault treating apparatus transmission.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220244938.4U CN202817896U (en) | 2012-05-23 | 2012-05-23 | Feeder line automation system |
| CN2012101699993A CN102664466A (en) | 2012-05-23 | 2012-05-23 | Feeder line automation system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220244938.4U CN202817896U (en) | 2012-05-23 | 2012-05-23 | Feeder line automation system |
| CN2012101699993A CN102664466A (en) | 2012-05-23 | 2012-05-23 | Feeder line automation system |
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| Publication Number | Publication Date |
|---|---|
| CN102664466A true CN102664466A (en) | 2012-09-12 |
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| CN201220244938.4U Expired - Fee Related CN202817896U (en) | 2012-05-23 | 2012-05-23 | Feeder line automation system |
| CN2012101699993A Pending CN102664466A (en) | 2012-05-23 | 2012-05-23 | Feeder line automation system |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220244938.4U Expired - Fee Related CN202817896U (en) | 2012-05-23 | 2012-05-23 | Feeder line automation system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103560585A (en) * | 2013-11-07 | 2014-02-05 | 南京国电南自轨道交通工程有限公司 | Digitized line protection measurement and control system suitable for metro industry |
| CN103855810A (en) * | 2014-03-31 | 2014-06-11 | 国网上海市电力公司 | Self-healing security and stability system for 110KV substation |
| CN104882867A (en) * | 2014-02-27 | 2015-09-02 | 国家电网公司 | Power distribution network self-healing control method and system |
| CN106684867A (en) * | 2017-01-19 | 2017-05-17 | 中国南方电网有限责任公司 | Real-time line loss calculation method, device and equipment based on state changes of distribution network switch |
| CN106849354A (en) * | 2017-01-26 | 2017-06-13 | 南京陇源汇能电力科技有限公司 | The method for diagnosing faults of power distribution network in a kind of distribution system |
| CN111987801A (en) * | 2020-08-21 | 2020-11-24 | 广东电网有限责任公司 | Transformer substation switch control system and transformer substation switch control method |
| CN113655331A (en) * | 2021-01-26 | 2021-11-16 | 青岛鼎信通讯股份有限公司 | Medium-voltage carrier feeder fault detection system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202817896U (en) * | 2012-05-23 | 2013-03-20 | 浙江省电力公司电力科学研究院 | Feeder line automation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103560585A (en) * | 2013-11-07 | 2014-02-05 | 南京国电南自轨道交通工程有限公司 | Digitized line protection measurement and control system suitable for metro industry |
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| CN103855810A (en) * | 2014-03-31 | 2014-06-11 | 国网上海市电力公司 | Self-healing security and stability system for 110KV substation |
| CN106684867A (en) * | 2017-01-19 | 2017-05-17 | 中国南方电网有限责任公司 | Real-time line loss calculation method, device and equipment based on state changes of distribution network switch |
| CN106684867B (en) * | 2017-01-19 | 2020-01-31 | 中国南方电网有限责任公司 | Real-time line loss calculation method, device and equipment based on distribution network switch state change |
| CN106849354A (en) * | 2017-01-26 | 2017-06-13 | 南京陇源汇能电力科技有限公司 | The method for diagnosing faults of power distribution network in a kind of distribution system |
| CN106849354B (en) * | 2017-01-26 | 2019-11-26 | 南京陇源汇能电力科技有限公司 | The method for diagnosing faults of power distribution network in a kind of distribution system |
| CN111987801A (en) * | 2020-08-21 | 2020-11-24 | 广东电网有限责任公司 | Transformer substation switch control system and transformer substation switch control method |
| CN113655331A (en) * | 2021-01-26 | 2021-11-16 | 青岛鼎信通讯股份有限公司 | Medium-voltage carrier feeder fault detection system |
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