廖敏夫

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:电气工程学院

学科:电机与电器. 高电压与绝缘技术. 电力电子与电力传动

办公地点:大连理工大学电气工程学院电力电子研究所407

联系方式:mfliao@dlut.edu.cn

电子邮箱:mfliao@dlut.edu.cn

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Influence of the AMF Arc Control on Voltage Distribution of Double-Break VCBs

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论文类型:期刊论文

发表时间:2016-10-01

发表刊物:IEEE TRANSACTIONS ON PLASMA SCIENCE

收录刊物:SCIE、EI、Scopus

卷号:44

期号:10

页面范围:2455-2461

ISSN号:0093-3813

关键字:Axial magnetic field (AMF); postarc current (PAC); vacuum switches; voltage distribution (VD)

摘要:This paper investigates the influence of the axial magnetic field (AMF) arc control on voltage distribution (VD) of double-break vacuum circuit breakers (VCBs) in order to gain balanced VD, and thus enhance the breaking capacity. The interaction of vacuum arc plasma, postarc current (PAC), and AMF is discussed. We conduct the breaking test of double-break VCBs with externally applied AMF of a different pulsewidth, magnitude, and a different moment. The PAC, postarc charge, and the VD are measured to analyze the relationship between the AMF arc control and the VD. The optimal AMF arc control and the relationship between the AMF magnitude and the unbalanced voltage ratio are gained when the grading capacitors were 400 pF. The experimental test showed that the proper AMF arc control can improve the unbalanced VD. The mechanism is that the proper AMF arc control can make the postarc charge small and stable, so the unbalanced postarc charge, which caused the unbalanced VD is limited.