针对电动汽车驱动与充电系统分离所带来的诸多问题，提出了一种电动汽车驱动和充电系统一体化电力电子拓扑结构及相应控制策略，该拓扑正向工作时驱动电机为电动状态、反向工作时给蓄电池充电为充电状态。一体化拓扑在充电时共用驱动系统的主电路和控制电路，无需额外增加AC/DC和DC/DC充电器，提高了功率密度、降低了产品成本、降低了系统故障率、减少了安装空间等，解决了传统电动汽车驱动与充电分离带来的问题。最后针对提出的一体化拓扑和控制策略进行了实验验证，试验中所采用电机型号为80CB050C，结果表明该一体化拓扑在充电实验时直流母线电压纹波在6.9%附近，经过Buck电路中电机绕组进一步滤波后，充电电压及电流纹波基本稳定在0.3%以内，验证了所提方法的正确性和可行性，具有一定的应用前景和实用价值。%In order to solve problems caused by the separation of electric vehicle driving and charging system ,an in⁃tegrated power electronic topology and control strategy for electric vehicle driving and charging system are pro⁃posed,this system works as an electrical drive mode under normal operation and a battery charging mode under re⁃verse operation. The integrated topology sharing the main circuit and control circuit of the driving system ,without additional AC/DC and DC/DC charger,improving power density,reducing product cost,reducing the system failure rate,reducing the installation space,and solving the problems caused by the separation of the driving and charging of the traditional electric vehicle. In the end,the integrated topology and control strategy is verified,the motor mod⁃el used in the experiment is 80CB050C,the results show that the DC link voltage ripple is around 6.9%in the charg⁃ing experiment,after the further filtered through themotor winding in Buck circuit,the charging voltage and current ripple are basically stable at 0.3%,which verified that the proposed method is correct and feasible,and it has a cer⁃tain application prospect and practical value.
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