For solving the interruption problem, a fault current limiting scheme is proposed which works on vacuum arc current commutation at power frequency zero and ignores the first half cycle of the fault current.
论文针对断路器开断能力限制的问题,提出了真空电弧工频零点电流转移的限流方法,该方法放弃对故障电流第一峰值的限制。
参考来源 - 基于真空电弧工频零点电流转移的限流器的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
This thesis discusses principal issues of the matrix converter such as prime principle, control strategy, current commutation, its applications etc.
本文立论研究的目的是对矩阵式变换器基本原理、控制策略、开关换流、应用范围等基本性问题进行探索性研究工作。
Double space vector modulation can realize zero current commutation of the rectifier side, greatly reduce the switch loss, and improve the efficiency of the converter.
双空间矢量调制两级协调控制能实现整流级零电流换流，极大地减少了开关损耗，提高了变换器的效率。
According to torque ripple of brushless DC motor, the different PWM modulation mode and overlapping commutation method are used to minimize torque pulsation when current commutation is considered.
针对无刷直流电动机的转矩脉动，提出采用不同的PWM调制方式以及不同的重叠换相角减小换相电流所引起的转矩脉动。
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