用于高交流/低直流中压应用的一种混合模块化多电平变换器的建模与控制

Hybrid modular multilevel converters (HMMC) have emerged recently as an improvement over conventional MMCs due to their lower submodule capacitor sizing, smaller semiconductor count, and lower losses. HMMCs can achieve such advantages, while still maintaining modularity due to their intelligent use of line-frequency-switching medium-voltage switches in addition to the high-frequency low-voltage sw...