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Research on Fast Opening Process in Electromagnetic Repulsion Mechanism.

Authors :
Hou, Yushan
Shi, Zongqian
Li, Sheng
Yao, Qiang
Miao, Yulong
Zhang, Shiling
Qiu, Ni
Source :
IEEE Transactions on Magnetics; Jun2019, Vol. 55 Issue 6, p1-4, 4p
Publication Year :
2019

Abstract

Fast interruption is vitally important in high-voltage direct current (HVDC) system to suppress the rapid increase of short current. In this paper, a multi-physics coupling simulation model of a high-speed electromagnetic repulsion mechanism (ERM) which is a part of HVDC breaker is proposed. The opening process with an electromagnetic buffer of ERM is investigated. The simulation results including forces, currents, displacements, and velocities are analyzed. Furthermore, a prototype of ERM is designed and developed. Results show that the efficacy of the proposed simulation methodologies is verified by the experimental results. The opening process of ERM could be divided into six stages. During an opening action, the impact of collision on the motion of ERM cannot be ignored. A good buffering effect can be achieved by reasonably setting the related parameters of the electromagnetic buffer. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00189464
Volume :
55
Issue :
6
Database :
Complementary Index
Journal :
IEEE Transactions on Magnetics
Publication Type :
Academic Journal
Accession number :
136509504
Full Text :
https://doi.org/10.1109/TMAG.2019.2893405