CN102904342A - Distributed self-healing control method of power distribution network - Google Patents

Distributed self-healing control method of power distribution network Download PDF

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Publication number
CN102904342A
CN102904342A CN201210385471XA CN201210385471A CN102904342A CN 102904342 A CN102904342 A CN 102904342A CN 201210385471X A CN201210385471X A CN 201210385471XA CN 201210385471 A CN201210385471 A CN 201210385471A CN 102904342 A CN102904342 A CN 102904342A
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CN
China
Prior art keywords
self
fault
healing control
control unit
healing
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Pending
Application number
CN201210385471XA
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Chinese (zh)
Inventor
凌万水
刘�东
马杰
周文华
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SHANGHAI SHENGDONG ELECTRIC POWER TECHNOLOGY CO LTD
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SHANGHAI SHENGDONG ELECTRIC POWER TECHNOLOGY CO LTD
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Priority to CN201210385471XA priority Critical patent/CN102904342A/en
Publication of CN102904342A publication Critical patent/CN102904342A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a distributed self-healing control method of a power distribution network, relating to the technical field of a power system. The technical problems to be solved are to improve the real-time capability and the reliability of the self-healing control. The method is characterized by comprising the following steps: a plurality of self-healing control units are arranged in each power distribution subnetwork, wherein each self-healing control unit corresponds to a plurality of automatic power distribution terminals in the power distribution subnetwork; when a fault occurs to the power distribution network, each self-healing control unit firstly obtains each fault current data corresponding to the automatic power distribution terminals, then communicates with the electrically adjacent self-healing control units to obtain the fault current data of each automatic power distribution terminal corresponding to the electrically adjacent self-healing control units, then judges a location of a fault point according to fault characteristics of the power distribution network to locate the fault, and finally isolates fault areas to recover the power supply for non-fault areas. The method provided by the invention is strong in real-time capability and high in reliability.

Description

The distributed self-healing control method of distribution network
Technical field
The present invention relates to power system technology, particularly relate to a kind of technology of distributed self-healing control method of distribution network.
Background technology
The automation distribution terminal that all is provided with some in the distribution network is monitored the operation of distribution network.Traditional distribution network all adopts centralized control to realize self-healing control, namely when distribution network suffers permanent fault, gathered the fault current data of each automation distribution terminal in the distribution network by automation distribution main website, again according to distribution network fault characteristic failure judgement point position, realize fault location, and then send control command to each automation distribution terminal, with fault section isolation, non-fault zone is restored electricity, thereby realize the self-healing control of power distribution automation.This self-healing control mode real-time is relatively poor, automation distribution main website just can make decisions after need to gathering the fault current data of all automation distribution terminals, therefore occur to the time that fault section isolation, non-fault zone restore electricity and need to grow from fault, and reliability is also relatively poor, in case automation distribution main website goes wrong, the self-healing control of whole distribution network will all lose efficacy.
Summary of the invention
For the defective that exists in the above-mentioned prior art, technical problem to be solved by this invention provides a kind of real-time, and the distributed self-healing control method of the high distribution network of reliability.
In order to solve the problems of the technologies described above, the distributed self-healing control method of a kind of distribution network provided by the present invention is characterized in that:
In each distribution subnet of distribution network, lay a plurality of self-healing controls unit, a plurality of automation distribution terminals in the distribution subnet of corresponding place, each self-healing control unit, between per two electric adjacent self-healing control unit, all set up communication link, so that can intercom mutually between the electric adjacent self-healing control unit;
When distribution network suffers permanent fault, communicate by letter in each self-healing control unit first automation distribution terminal corresponding to each, obtain the fault current data of each corresponding automation distribution terminal, and then with electric adjacent self-healing control unit communication, obtain the fault current data of electric adjacent corresponding each automation distribution terminal in self-healing control unit, and then according to distribution network fault characteristic failure judgement point position, realize fault location;
After fault location was finished, the self-healing control unit that the fault point is relevant sent control command to each corresponding automation distribution terminal, so that the switch opens of fault point periphery realizes the isolation of fault zone;
After fault section isolation is finished, each self-healing control unit is to the interconnection switch in the fault zone or outlet breaker do not send the signal that restores electricity, make not that interconnection switch or the outlet breaker in the fault zone closes again, realize restoring electricity of non-fault zone.
The distributed self-healing control method of distribution network provided by the invention, adopt the distributed decision making method, for each distribution subnet, by the data that are distributed in on-the-spot self-healing control unit collection site automation distribution terminal, and mutually intercommunication, the self-healing control of autonomous realization distribution subnet, occur to fault section isolation, non-fault zone time of expending that restores electricity from fault very short, has very strong real-time, and reliability is also higher, even automation distribution main website goes wrong, also can not cause the self-healing control of whole distribution network to lose efficacy.
Embodiment
Below in conjunction with specific embodiment technical scheme of the present invention is described in further detail, but the present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar variation thereof all should be listed protection scope of the present invention in.
The distributed self-healing control method of a kind of distribution network that the embodiment of the invention provides is characterized in that:
In each distribution subnet of distribution network, lay a plurality of self-healing controls unit, a plurality of automation distribution terminals in the distribution subnet of corresponding place, each self-healing control unit, between per two electric adjacent self-healing control unit, all set up communication link, so that can intercom mutually between the electric adjacent self-healing control unit;
When distribution network suffers permanent fault, communicate by letter in each self-healing control unit first automation distribution terminal corresponding to each, obtain the fault current data of each corresponding automation distribution terminal, and then with electric adjacent self-healing control unit communication, obtain the fault current data of electric adjacent corresponding each automation distribution terminal in self-healing control unit, and then according to distribution network fault characteristic failure judgement point position, realize fault location;
After fault location was finished, the self-healing control unit that the fault point is relevant sent control command to each corresponding automation distribution terminal, so that the switch opens of fault point periphery realizes the isolation of fault zone;
After fault section isolation is finished, each self-healing control unit is to the interconnection switch in the fault zone or outlet breaker do not send the signal that restores electricity, make not that interconnection switch or the outlet breaker in the fault zone closes again, realize restoring electricity of non-fault zone.
In the embodiment of the invention, the self-healing control unit realizes that according to the distribution network fault characteristic method of fault location is prior art.
In the embodiment of the invention, all disposing serial communication modular and/or network communication module in each self-healing control unit, realizes communicating by letter with the automation distribution terminal in the distribution subnet by serial communication modular and/or network communication module in each self-healing control unit.
In the embodiment of the invention, described self-healing control unit comprises self-healing control module, serial communication modular, network communication module, switching input module;
Described self-healing control module has adopted 32 arm processors and high-capacity FLASH storage chip, has guaranteed the real-time that system is good, reliability, stability;
Described serial communication modular is provided with 4 DB9 type serial data interfaces, and be built-in with the data-interface protective circuit, each data-interface is all supported RS232, RS422 and RS485, and the communication baud rate scope between the 256K baud, is used for accessing various serial ports type equipment at 300 bauds;
Described network communication module is provided with the 10M/100M self adaptation ethernet port of 2 RJ45 types, and each ethernet port is provided with independently IP address, is used for access diverse network type equipment, or is used for and automation distribution master station communication;
Each serial data interface and each ethernet port all are furnished with the transmitting-receiving LED light, are used for showing current communications status;
Described switching input module is provided with double switch amount input terminal, is used for access external control instruction.

Claims (1)

1. the distributed self-healing control method of a distribution network is characterized in that:
In each distribution subnet of distribution network, lay a plurality of self-healing controls unit, a plurality of automation distribution terminals in the distribution subnet of corresponding place, each self-healing control unit, between per two electric adjacent self-healing control unit, all set up communication link, so that can intercom mutually between the electric adjacent self-healing control unit;
When distribution network suffers permanent fault, communicate by letter in each self-healing control unit first automation distribution terminal corresponding to each, obtain the fault current data of each corresponding automation distribution terminal, and then with electric adjacent self-healing control unit communication, obtain the fault current data of electric adjacent corresponding each automation distribution terminal in self-healing control unit, and then according to distribution network fault characteristic failure judgement point position, realize fault location;
After fault location was finished, the self-healing control unit that the fault point is relevant sent control command to each corresponding automation distribution terminal, so that the switch opens of fault point periphery realizes the isolation of fault zone;
After fault section isolation is finished, each self-healing control unit is to the interconnection switch in the fault zone or outlet breaker do not send the signal that restores electricity, make not that interconnection switch or the outlet breaker in the fault zone closes again, realize restoring electricity of non-fault zone.
CN201210385471XA 2012-10-12 2012-10-12 Distributed self-healing control method of power distribution network Pending CN102904342A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210385471XA CN102904342A (en) 2012-10-12 2012-10-12 Distributed self-healing control method of power distribution network

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Application Number Priority Date Filing Date Title
CN201210385471XA CN102904342A (en) 2012-10-12 2012-10-12 Distributed self-healing control method of power distribution network

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103545797A (en) * 2013-10-10 2014-01-29 国家电网公司 Distribution network area protecting and self-healing system
CN103872772A (en) * 2014-02-14 2014-06-18 上海申瑞继保电气有限公司 Radial distribution network self-healing control method
CN103872771A (en) * 2014-02-14 2014-06-18 上海申瑞继保电气有限公司 Self healing control method for urban power distribution network
CN104698250A (en) * 2013-12-06 2015-06-10 展讯通信(上海)有限公司 Mobile terminal, current decomposing and positioning method and system thereof and current testing device
CN104882867A (en) * 2014-02-27 2015-09-02 国家电网公司 Power distribution network self-healing control method and system

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CN102496937A (en) * 2011-11-28 2012-06-13 山东工商学院 Fault recovery method applied to intelligent distribution network and based on load balance
CN102684308A (en) * 2012-05-18 2012-09-19 上海交通大学 Superconducting state information-based power distribution network self-healing system and method

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US5517423A (en) * 1994-01-11 1996-05-14 Systems Analysis And Integration, Inc. Power distribution system control network
CN102496937A (en) * 2011-11-28 2012-06-13 山东工商学院 Fault recovery method applied to intelligent distribution network and based on load balance
CN102684308A (en) * 2012-05-18 2012-09-19 上海交通大学 Superconducting state information-based power distribution network self-healing system and method

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103545797A (en) * 2013-10-10 2014-01-29 国家电网公司 Distribution network area protecting and self-healing system
CN103545797B (en) * 2013-10-10 2016-04-27 国家电网公司 A kind of distribution locality protection and self-healing system
CN104698250A (en) * 2013-12-06 2015-06-10 展讯通信(上海)有限公司 Mobile terminal, current decomposing and positioning method and system thereof and current testing device
CN103872771A (en) * 2014-02-14 2014-06-18 上海申瑞继保电气有限公司 Self healing control method for urban power distribution network
CN103872771B (en) * 2014-02-14 2016-01-20 上海申瑞继保电气有限公司 Self-healing control method for urban power distribution network
CN103872772B (en) * 2014-02-14 2016-01-20 上海申瑞继保电气有限公司 Radial distribution networks self-healing control method
CN103872772A (en) * 2014-02-14 2014-06-18 上海申瑞继保电气有限公司 Radial distribution network self-healing control method
CN104882867A (en) * 2014-02-27 2015-09-02 国家电网公司 Power distribution network self-healing control method and system

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Application publication date: 20130130