The main converter commutation process due to regenerative braking is also analyzed, and reasons of regenerative overturn caused by pantograph ju…

文章还分析了再生制动时主变流器的换相过程，并对跳弓拉弧时引起再生颠覆的原因也作了说明。

youdao

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。

youdao

The brushless DC motor has excellent characteristics of good start and timing performance, but it is a nonlinear system owing to commutation process and armature reaction.

虽然无刷直流电机具有良好的启动和调速性能，但是由于换相以及电枢反应等因素，它属于非线性系统。

youdao