Risk Assessment of Cascading Failures in Flexible Interconnected Power Distribution System

被引：0
|
作者：
Xue Y. [1 ]
Li Y. [1 ]
Liu W. [1 ]
Shen Z. [2 ]
Li Q. [2 ]
Zhai S. [3 ]
机构：
[1] State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing
[2] Economic and Technological Research Institute of State Grid Shanxi Electric Power Co., Ltd., Taiyuan
[3] Linfen Power Supply Company of State Grid Shanxi Electric Power Co., Ltd., Linfen
来源：
Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2021年 / 45卷 / 08期
关键词：
Cascading failure; Distributed generator; Flexible interconnected power distribution system; Flexible multi-state switch; Monte Carlo method; Risk assessment; Uncertainty;
D O I：
10.7500/AEPS20200505010
中图分类号：
学科分类号：
摘要：
In order to analyze the cascading failure risk of flexible interconnected power distribution systems caused by hidden fault protection of flexible multi-state switch (FMS), this paper first introduces its physical structure. Then, the steady-state characteristic, the transient characteristic of AC feeder failure, and FMS control and protection strategies are analyzed. The uncertain factors that cause the protection malfunctions are proposed and modeled. On this basis, the mechanism of cascading failure formation is analyzed, and the cascading failure risk indicators of flexible interconnected power distribution networks are established. The probabilistic indicators based on Monte Carlo method and the calculation methods based on optimal load shedding failure consequences are also proposed. Taking the modified IEEE 33-bus system as an example, the risk of cascading failures in the system is evaluated, and the influence of the failure location and the penetration rate of distributed generators on the risk is analyzed. © 2021 Automation of Electric Power Systems Press.
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页码：112 / 119
页数：7
相关论文
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