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Distributed intelligent feed line automation control method

A feeder automation and control method technology, applied in AC network circuits, electrical components, circuit devices, etc., can solve problems such as slow power supply recovery, achieve the effect of strong versatility, simple setting and configuration, and reducing power failure time

Active Publication Date: 2013-10-16
STATE GRID CORP OF CHINA +3
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Problems solved by technology

In the prior art, the IntelliTEAM FA system developed by S&C Corporation of the United States proposes a fault recovery and reconstruction scheme for overhead lines based on distributed intelligent control. A coach is selected in the team to be responsible for collecting and processing the failure information of the team members (team member) to realize fault self-healing control, but due to the adoption of a segment-by-segment recovery strategy, the recovery of power supply is slow
In addition, the existing technology also proposes to use wireless communication technology to connect FTU data to the wireless peer-to-peer communication network through the serial port to realize distributed intelligent FA. However, the entire power supply restoration process also takes more than 10s

Method used

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Embodiment Construction

[0019] The technical solution adopted by the present invention to solve the technical problem is: in the distributed intelligent FA system, the FTU controls the monitored switch to complete fault location, isolation and power supply recovery operations, and it is necessary to establish a switch configuration information table of the FTU.

[0020] The FTU switch configuration information table is realized by the following method: First, number all FTUs on the feeder, denoted by a, in order of 1, 2, ... N, N is the number of FTUs on the feeder.

[0021] Each FTU may only monitor one switch (circuit breaker or column switch), or it may monitor multiple switches in the same ring main unit. Create a switch configuration information table for each FTU, number all the switches monitored by the FTU, and then mark the type of the monitored switch (indicated by b) and the information of its adjacent switches. The switch type is divided into M-terminal power switch, N End power switch, m...

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Abstract

The invention relates to a general control method of medium voltage distribution network feeder fault locating, isolation and power restoration based on a peer-to-peer communication network and distributed intelligence and especially relates to a distributed intelligent feed line automation control method. According to a feed line terminal and a monitoring switch, classification processing is performed and a switch configuration information table is established. Then aiming at feed line switches with different types, the distributed intelligent feed line automation control method is designed and a corresponding distributed intelligent feed line automation system is exploited. An on-site test and an application result show that the system can complete feed line fault locating and isolation operation in 600ms after protection motion trip-out and realize power restoration operation in a non-fault section in 1.5s.

Description

technical field [0001] The invention relates to a general control method for feeder fault location, isolation and power supply restoration of a medium-voltage distribution network based on a peer-to-peer communication network and distributed intelligence, in particular to a distributed intelligent feeder automatic control method. Background technique [0002] Feeder automation (FA) is mainly used to realize fault location, isolation and power supply restoration of distribution network lines, which can reduce the time of fault outage, reduce the scope of power outage, and improve the reliability of power supply. At present, FA mainly adopts the centralized control method, relying on the main station to collect and process the fault information sent by the feeder terminal (FTU) to locate the fault, and the remote control section switch realizes fault isolation and network reconstruction, and the power supply recovery time of the non-faulty section reaches Minutes. With the de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00
CPCH02J3/0073H02J13/00034Y04S10/52H02J13/00002H02J3/0012Y02E60/00Y04S10/30
Inventor 李天友吴文宣陈彬王敬华杨建平
Owner STATE GRID CORP OF CHINA
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