一种针对三相Vienna整流器轻载的直接调制指数控制策略

The three-phase Vienna rectifier suffers from the inherent problem of increased or unstable output voltage on the dc side at light loads. In this article, a light-load state judgment criterion is derived based on the Vienna equivalent model. A direct modulation index control strategy is further proposed to optimize the light-load performance, which is implemented by proportional control and voltag...