一种用于模块化多电平变换器整流和逆变子模块的低直流电压自循环测试方法

This article proposes a testing method for multiple submodules (SMs) in a modular multilevel converter (MMC), along with its topology, control strategy, and basic design. The proposed testing method is capable of emulating the operating conditions of multiple SMs both in rectifying and inverting modes of the back-to-back MMC system. The configuration of the testing system significantly reduces the...