Optimal model of power grid fault diagnosis considering reliability of protection and circuit breaker alarm information

被引：0

作者：

Chen J. ^{[1
]}

Zhang Y. ^{[1
]}

Huang G. ^{[1
]}

Hao J. ^{[1
]}

Huang T. ^{[2
]}

Huang C. ^{[2
]}

机构：

[1] Research Center of Smart Energy Technology, School of Electric Power, South China University of Technology, Guangzhou

[2] Guangzhou Power Electric Technology Co., Ltd., Guangzhou

来源：

Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2021年 / 49卷 / 04期

关键词：

Fault diagnosis; Multi-objective optimization; Self-check information; Trustworthiness; Warning information;

D O I：

10.19783/j.cnki.pspc.200459

中图分类号：

学科分类号：

摘要：

In order to improve the fault tolerance and solving efficiency of existing analytical models for power grid fault diagnosis, this paper proposes an optimization model for power grid fault diagnosis that takes into account the reliability of protection and circuit breaker action state alarm information. First, the reliability of alarm information is evaluated based on the protection and circuit breaker self-test information. Secondly, a multi-objective optimization model is constructed to minimize the difference between the warning information and the expected action state, and maximize the expected action state credibility of protection and circuit breaker. Thirdly, the optimization model is linearized and the optimal solution is obtained based on the weighted sum method and the fuzzy membership function. Finally, the examples verify the efficiency and versatility of the model. The model in this paper can quickly diagnose power grid faults when there are errors in the alarm information, and has good application prospects. © 2021 Power System Protection and Control Press.

引用

页码：28 / 36

页数：8

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