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Fault quick isolation and load transfer method for regional power supply looped network

A ring network failure and regional power supply technology, which is applied in the direction of electrical components, circuit devices, emergency protection circuit devices, etc., can solve problems that do not meet the requirements of high reliability of power supply, and achieve improved power supply reliability, short power outage time, small The effect of reducing the scope of fault outages

Pending Publication Date: 2018-01-19
XJ ELECTRIC
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Problems solved by technology

The above methods no longer meet the requirements of users, especially important loads, for high reliability of power supply

Method used

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  • Fault quick isolation and load transfer method for regional power supply looped network
  • Fault quick isolation and load transfer method for regional power supply looped network

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] see Figure 1-2 , a regional power supply ring network fault fast isolation and load transfer method, comprising the following steps:

[0021] A. The smart terminal collects the current and voltage data of the nodes in this interval in real time, the switching status of each switch and the topology information of the power supply network;

[0022] B. Through the high-speed communication network, send the current sampling value, switch status, and remot...

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Abstract

The invention discloses a fault quick isolation and load transfer method for a regional power supply looped network, and the method comprises the following steps: A, collecting the current and voltageof an interval node, the on / off states of all switches and the topological information of a power supply network in real time through an intelligent terminal; B, transmitting a current sampling value, an on / off state and remote control information of the node to an adjacent power supply node through a high-speed communication network, and receiving a current sampling value, an on / off state and remote control information, which are transmitted by an adjacent node. The method can be used for the regional power supply network, does not depend on a main station system, can automatically completethe fault isolation and the power supply recovery of a non-fault region, enables a power failure scope to be minimum, enables the power failure time of the non-fault region to be short, and improves the power supply reliability.

Description

technical field [0001] The invention relates to the field of electric power system automation, in particular to a method for rapid fault isolation and load transfer of a regional power supply ring network. Background technique [0002] In order to improve the reliability of regional power supply, the power distribution network is now promoting the ring network power supply mode. Due to the short distance of the lines in the distribution network, the conventional overcurrent protection has a fixed value and a time limit that is difficult to set, and cannot meet the basic requirements of relay protection. At present, the domestic power distribution automation mostly adopts the recloser / sectioner method, the communication-based feeder automation method, etc. The recloser / sectioner method uses the circuit breaker as the trip switch, and determines the fault area by reclosing the circuit breaker and load switch multiple times, which requires multiple trip switches, resulting in l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/26H02H7/28H02H1/00
Inventor 王虎森马运亮冉茂兵吴战伟杨云鹏程中普闫玲玲陈春宇束芳芳季国瑞陈新王盛开
Owner XJ ELECTRIC
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