采用首个闭锁方法的MMC故障电流行为

This paper introduces the fault current behavior of full-bridge modular multilevel converters (MMCs) and hybrid MMCs, with a consideration of a non-simultaneous blocking of the two half-bridges in each sub-module. In order to protect insulated gate bipolar transistor (IGBTs) in the full-bridge sub-module, both sides of a full-bridge sub-module are not blocked at the same time point. It is assumed ...