一种基于三电平单元的混合级联多电平变换器及其在电动汽车电池能量管理中的应用

In order to produce more voltage levels and meet the requirement of the motor drive in electric vehicles (EVs), a hybrid cascaded multilevel converter based on three-level (TL) cells is proposed in this paper. In each unit, there is a battery and two series-connected capacitors, which hold a half of the battery voltage, respectively. Each TL cell is controlled to be connected or bypassed by a conv...