Research on synchronization of series multi-break high-speed mechanical switch for HVDC circuit breaker

被引：0
|
作者：
Chen L. [1 ]
Zhou W. [1 ]
Zhang S. [1 ]
Li W. [2 ]
Fang C. [2 ]
Ren X. [2 ]
机构：
[1] State Key Laboratory of Advanced Power Transmission Technology, State Grid Smart Grid Research Institute Co.，Ltd.，）, Beijing
[2] School of Electrical Engineering and Electronic Information, Xihua University, Chengdu
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2023年 / 43卷 / 08期
关键词：
high-speed mechanical switch; HVDC circuit breaker; multi-break; synchronization;
D O I：
10.16081/j.epae.202302011
中图分类号：
学科分类号：
摘要：
The series multi-break high-speed mechanical switch is an important part of hybrid high voltage direct current （HVDC） circuit breaker，and the synchronous performance between multi-breaks of high-speed mechanical switch has an important impact on the breaking performance of HVDC circuit breaker. The topology structure and working principle of multi-break high-speed mechanical switch are studied. The influence law of coil parameters，energy storage capacitance，ambient temperature，charging voltage，control system and other factors of the operating system on the synchronism is analyzed，and the measures to ensure the synchronism between multi-breaks by controlling the internal resistance of the coil，the deviation of the energy storage capacitance value and the process are proposed. On this basis，the synchronization of the high-speed mechanical switch of 535 kV hybrid DCCB in Zhangbei multi terminal flexible DC project is tested. The test results show that the dispersion of each fracture is within ±0.2 ms，which provides a guarantee for the reliable breaking of the hybrid HVDC circuit breakers. © 2023 Electric Power Automation Equipment Press. All rights reserved.
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页码：148 / 154
页数：6
相关论文
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