基于人工零流的真空直流断路剩余轴向磁场仿真

2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV) Pub Date : 2016-09-01 DOI:10.1109/DEIV.2016.7763997

Yingkui Zhang, Z. Shi, Junliang Li, Qiaosen Wang, S. Jia, Lijun Wang

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引用次数: 1

摘要

基于人工零流技术的直流断路在强制零流阶段由于di/dt较大而产生的零流处剩余轴向磁场(AMF)对真空断路器的断路性能影响很大。本文利用有限元分析软件Ansys建立了AMF接触模型。用等效电路对触点系统中产生的涡流进行了分析。研究了逆流频率对剩余AMF的影响。

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Simulation on the residual axial magnetic field in vacuum DC interruption based on artificial current zero

The residual axial magnetic field (AMF) at current zero, which is caused by large di/dt during the forced current-zero stage of DC interruption based on the technique of artificial current zero, has significant influence on the interruption performance of the vacuum circuit breaker. In this paper, a model of AMF contacts is developed by finite-element-analysis software, Ansys. The eddy current induced in the contacts system is also analyzed by an equivalent circuit. The influence of the frequency of countercurrent on the residual AMF is investigated.

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2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)

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