基于导通角和零序电压的交替臂变换器电容电压平衡控制

The alternate arm converter (AAC) owns additional advantages over the traditional modular multilevel converter, such as reduced number and capacitance of submodules (SMs), and dc fault ride-through capability. The capacitor voltage balance of the AAC has always been a hot and difficult research topic. The balance performance of the conventional short-overlap control is limited by the maximum circu...