Voltage-time feeder automation control method based on primary station control strategies

A technology of feeder automation and master station control, which is applied in the direction of electrical components, circuit devices, emergency protection circuit devices, etc., can solve problems such as one-time reclosing faults, achieve enhanced safety and stability, and ensure production and domestic electricity consumption Effect

Inactive Publication Date: 2013-03-27
STATE GRID CORP OF CHINA +1
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  • Abstract
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Problems solved by technology

[0004] The present invention provides a voltage-time type feeder automation control method based on the control strategy of the main station, which effectively solves the problem of coordination error between voltage-time type feeder automation and substation primary reclosing

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  • Voltage-time feeder automation control method based on primary station control strategies
  • Voltage-time feeder automation control method based on primary station control strategies
  • Voltage-time feeder automation control method based on primary station control strategies

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Embodiment Construction

[0022] The present invention provides a voltage-time feeder automation control method based on master station control strategy, which is used to solve the coordination problem between voltage-time feeder automation and substation primary reclosing through the voltage-time feeder automation system.

[0023] The voltage-time feeder automation system includes:

[0024] A substation outlet circuit breaker is set at the output end of each substation, and each substation controls a power distribution line;

[0025] Different power distribution lines are connected through a voltage-time type tie switch, and the voltage-time type tie switch is in an open state under normal conditions;

[0026] A plurality of voltage-time type subsection switches are arranged on the power distribution main line, and the voltage-time type subsection switches form a communication connection with the distribution automation master station;

[0027] like figure 1 As shown, a voltage-time type feeder auto...

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Abstract

The invention discloses a voltage-time feeder automation control method based on primary station control strategies. The method includes the steps of firstly, configuring a distribution automation primary station, namely configuring criterion conditions of 'remote switching on' of the distribution automation primary station; secondly, fault tripping, namely switching off all voltage-time switches on a distribution line and starting count down; thirdly, fault separating, namely simultaneously locking voltage-time section switches on two sides of a fault point to realize fault section separation; and fourthly, recovering power supply, namely sequentially switching on voltage-time section switches, from voltage-time section switches near a converting station to voltage-time section switches distant from the converting station, on the distribution line with the fault point to realize power supply of non-fault areas. By modifying distribution automation primary station control strategies, coordination of single shot reclosing of the voltage-time feeder automation and the converting station is achieved, safety and reliability of distribution lines are improved greatly, production and living power of factories and residence are guaranteed effectively.

Description

technical field [0001] The invention relates to the technical field of power distribution automation, in particular to a voltage-time type feeder automation control method based on a master station control strategy. Background technique [0002] "Voltage-time type" feeder automation is realized through the working characteristics of the voltage type switch, which is "closed upon call and released without pressure". This method requires the substation outlet protection to be set for secondary closing. After a fault occurs, the primary reclosing isolates the fault, and the secondary reclosing restores the power supply in the non-faulty area. This feeder automation mode has the advantages of simple maintenance and no dependence on communication. However, in many areas of our country, substation outlet switches adopt one-time reclosing. How to realize the cooperation of voltage-time feeder automation and substation one-time reclosing has become a key problem to be solved in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/22H02J13/00
CPCY02B90/224Y04S20/14Y02B90/20
Inventor 许明房牧王肃谢荣昆刘书忠杜琰王晖王晓燕
Owner STATE GRID CORP OF CHINA
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