中压应用中模块化多电平变换器的解耦调制方案

Ensuring a good voltage waveform for the modular multilevel converter (MMC) is always of great importance. This article reveals that the modulation harmonic features of MMC would be adversely affected when applying circulating current suppression control. This problem becomes more severe in medium-voltage MMCs which has small number of submodules. A straightforward decoupled modulation scheme is p...