Reliability Evaluation and Quantitative Analysis of Multi-terminal Interconnect Power Distribution System with Flexible Multi-state Switch

被引：0
作者：
Liu W. [1 ]
Liu X. [1 ]
Wang R. [1 ]
Huang Y. [1 ]
Yang Y. [2 ]
Li J. [2 ]
机构：
[1] State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing
[2] State Grid Zhejiang Electric Power Co., Ltd., Hangzhou
来源：
Gaodianya Jishu/High Voltage Engineering | 2020年 / 46卷 / 04期
基金：
国家重点研发计划;
关键词：
Access strategy; Decoupling; Flexible multi-state switch; Quantitative analysis; Reliability model;
D O I：
10.13336/j.1003-6520.hve.20200430002
中图分类号：
学科分类号：
摘要：
In order to meet the requirements of flexible multi-state switch access strategy planning in multi-terminal interconnected power distribution systems, a reliability evaluation method for multi-terminal flexible interconnected power distribution systems with flexible multi-state switches is proposed in this paper. Firstly, based on the physical structure of the flexible multi-state switch and its control operation strategy, the reliability evaluation model of the flexible multi-state switch is established. Secondly, based on the system operation mode and network structure change brought by the flexible multi-state switch access system, the load recovery strategy for disconnected side is designed and the factors affecting the system reliability are refined. Finally, a reliability evaluation method based on sequential sampling and fault analysis decoupling is proposed, and the influence of different access strategies of flexible multi-state switches on system reliability is quantitatively analyzed. The simulation results show that after the flexible multi-state switch is connected, the SAIFI is increased by about 38.2%, the SAIDI is increased by about 49.6%, the ASAI is increased by about 1.1%, and the reliability of the distribution network system is improved significantly. The research results can provide theoretical supports for the research of flexible multi-state switch access strategy, and provide references for the planning and design of flexible interconnected power distribution network in the future. © 2020, High Voltage Engineering Editorial Department of CEPRI. All right reserved.
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页码：1114 / 1123
页数：9
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