级联多电平拓扑中的电流纹波对锂电池老化的影响

Previous studies have proposed to use cascaded multilevel topologies in stationary battery energy storage systems (BESSs) or in BESSs of electric vehicles, due to the balancing capability or the high efficiency of these topologies. Because of the elimination of the direct current (dc) bus, the batteries in these topologies are expected to experience large current ripples. However, whether these cu...