简介:摘要:本文依据辅助逆变器原理,建立了辅助逆变器仿真平台,在不同电气参数条件下使用该平台进行仿真。仿真结果表明,该仿真平台仿真结果与实际相符,可以为实际工程设计供设计一定依据。
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简介:为保证脉冲直流环节高频链辅助逆变器较高的输出电压质量,引进SRSPWM混合调制策略。该调制前级采用移相控制方式,而移相角度由6脉波与三角载波的占空比决定;后级实现对前级的解调,但在一个基波周期内仅有1/3周期处于调制状态,与传统SPWM调制相比大大减小了开关损耗。通过数学推导验证了该调制方法的可行性,最后对该混合调制策略进行了仿真与实验验证。