Setting Optimization of Improved Impedance Correction Inverse Time Overcurrent Protection Considering Backup Protection Optimization Series

被引：0
|
作者：
Huang J. [1 ]
Li Z. [1 ]
Zhang Y. [2 ]
Zhang Y. [2 ]
Chen Y. [1 ]
Weng H. [1 ]
Li Z. [1 ]
Lin X. [3 ]
机构：
[1] College of Electrical Engineering and New Energy, China Three Gorges University, Hubei Province, Yichang
[2] Shaoxing Power Supply Company, State Grid Zhejiang Electric Power Co., Ltd., Zhejiang Province, Shaoxing
[3] State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Hubei Province, Wuhan
来源：
Dianwang Jishu/Power System Technology | 2022年 / 46卷 / 07期
基金：
中国国家自然科学基金;
关键词：
backup protection optimization stages; improved impedance correction; inverse time overcurrent protection; parameter optimization; quantum genetic algorithm; speed;
D O I：
10.13335/j.1000-3673.pst.2021.1131
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
An improved impedance correction inverse time limit overcurrent protection setting is proposed, which takes the backup protection optimization series into consideration. First the conventional impedance correction inverse time overcurrent protection algorithm is optimized by increasing the number of the backup protection optimization stages to improve the operation speed of the remote backup protection; Then, to deal with the problem that the setting of the optimized impedance correction inverse time overcurrent protection may be complicated and unmatchable, the minimum total operating time of the optimized impedance correction inverse time overcurrent main protections and the backup protections is taken as the objective function, and the protection selectivity and sensitivity requirements as the constraints, the inverse-time protection parameter optimization setting mathematical model is established and solved by the Quantum genetic algorithm. Theoretical analysis and simulation results based on the PSCAD show that the proposed Quantum genetic algorithm based setting optimization scheme of the impedance correction inverse time overcurrent protection effectively improves the selectivity and speed of the protection. © 2022 Power System Technology Press. All rights reserved.
引用
收藏
页码：2768 / 2777
页数：9
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