Optimal configuration of fault current limiter in large power network

被引：0
|
作者：
Zhang Y.-G. [1 ]
Li X.-B. [1 ]
Fang H.-L. [2 ]
Gong J. [2 ]
机构：
[1] School of Electrical and Automation Engineering, East China Jiaotong University, Nanchang
[2] School of Electrical Engineering, Wuhan University, Wuhan
来源：
Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2020年 / 24卷 / 06期
关键词：
Configuration optimization; Fault current limiter; Particle swarm optimization algorithm; Reliability; Short circuit current; Ultra-high voltage;
D O I：
10.15938/j.emc.2020.06.010
中图分类号：
学科分类号：
摘要：
Ultra-high voltage(UHV) project access makes the scale of power grid expand continuously, and the level of short-circuit current continues to rise, which leads to the greater hidden danger of safe and stable operation of power grid. To solve this problem, a method of optimal configuration of current limiter based on power grid reliability is proposed.Through short circuit calculation, the reliability of power grid was evaluated quantitatively, and the reliability analysis under the influence of short circuit was realized.The quantitative model between reliability evaluation and short-circuit current as well as load loss was established. According to the quantitative results of reliability, the candidate installation points of current limiter were determined.Particle swarm optimization algorithm was used to optimize the distribution of current limiters, aiming at the reliability level and the minimum number of current limiters under short circuit. Finally, taking the actual power grid of some province as an example, the results show that this method reduces the search space of the optimal solution, realizes the optimal configuration of current limiter, and effectively limits the short-circuit current. It is proved to improve the reliability of power grid operation. © 2020, Harbin University of Science and Technology Publication. All right reserved.
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页码：81 / 89
页数：8
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