瞬态场耦合下的真空断路器电磁兼容性优化*

doi:10.13385/j.cnki.vacuum.2026.03.11

Abstract

Abstract: To address the problem of strong electromagnetic interference sources caused by transient field coupling on the electromagnetic compatibility of vacuum circuit breakers and improve their anti electromagnetic interference capabilities, this study proposes an electromagnetic compatibility optimization method for vacuum circuit breakers under transient field coupling. This method incorporates electromagnetic torque into the failure rate model under transient field coupling analysis, and determines the mean time between failures of vacuum circuit breakers as a compatibility failure indicator; based on the operating parameters of the shielding cover and contacts inside the vacuum arc extinguishing chamber, determine the electromagnetic compatibility optimization objectives, and combine improved deep learning to achieve multi parameter collaborative optimization of electromagnetic compatibility for vacuum circuit breakers. The results showed that the optimized electric field distribution uniformity was improved to 5.1%~6.6%, effectively avoiding magnetic field coupling under sudden changes in electromagnetic torque; Effectively suppress the intensity of electromagnetic field interference, with a minimum value of 3.66 mT and a maximum value of 7.25 mT.

Key words: transient field coupling, vacuum circuit breaker, electromagnetic compatibility, failure rate, leakage rate

CLC Number: TM854

ZHANG Ziqi. Optimization of Electromagnetic Compatibility of Vacuum Circuit Breaker under Transient Field Coupling[J].VACUUM, 2026, 63(3): 76-82.

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Optimization of Electromagnetic Compatibility of Vacuum Circuit Breaker under Transient Field Coupling

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