具有非对称支路阻抗的隔离型模块化多电平DC-DC变换器分析与桥臂电压控制

Isolated modular multilevel dc-dc converter (IMMDCC), which consists of two modular multilevel converters and a medium-frequency transformer, is attractive for medium-voltage applications because of the following features: the modular structure can handle higher voltage, and synthesizing square-wave voltages toward the alternating current (ac) link increases the dc voltage utilization ratio and ac...