Based on the theory of commutation in DC machines, this paper describes a numerical analysis method for analysis of the commutation spark.
本文根据直流电机换向理论，给出了一种分析直流电机换向火花的方法。
Based on electrical circuit theory, the formulation of the relation between mutual admittance and converter commutation voltage of the multi-infeed HVDC system was given.
基于电路基本理论知识，推导出多馈入交、直流并联的高压直流输电系统耦合导纳和换相电压关系表达式。
The cause of producing the commutation torque ripple was mainly found by means of analyzing the commutation process of permanent magnet brushless DC motor in theory.
主要对永磁无刷直流电动机换相过程进行理论分析，得到引起换相转矩脉动的原因。
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