一种基于桥臂电流控制的模块化多电平变换器电网侧开路故障控制策略

To further improve the power supply sustainability of the ac/dc hybrid distribution networks, this article proposes a control strategy for the modular multilevel converter (MMC) under grid-side open-circuit fault, which is based on independent arm current control. Firstly, the behaviors of the MMC after the faults are analyzed, including single-phase and two-phase open-circuit faults. For single-p...