微特电机 ›› 2023, Vol. 51 ›› Issue (10): 40-44.

• 驱动控制 • 上一篇    下一篇

用于电动汽车的升压充电变换器控制设计

胡鹏博   

  1. 中国长安汽车集团有限公司上海驰驱智能控制技术分公司,上海 200040
  • 收稿日期:2023-05-09 出版日期:2023-10-28 发布日期:2023-10-25

Control Design of Boost Charging Converter for Electric Vehicles

HU Pengbo   

  1. Shanghai Chiqu Intelligent Control Technology Branch of China Chang’ an Automobile Group Co. , Ltd. ,Shanghai 200040, China
  • Received:2023-05-09 Online:2023-10-28 Published:2023-10-25

摘要: 为满足电动汽车高压平台对低压充电桩的兼容,实现动力电池充电,介绍了一种集成式升压充电系统,通过用电驱动系统的电机和电机控制器来组成 Boost 变换器。 对两相交错并联时的工作特性进行分析,根据状态空间平均建立了交流小信号模型,设计了电压电流双闭环 PI 控制系统并进行了仿真。 结果表明,该双闭环控制策略能实现两相交错并联变换器的动态控制,电流纹波小且输出电压稳定,满足电动汽车的应用需求。

关键词: 电动汽车, 交错并联, Boost 变换器, 闭环控制

Abstract: To meet the compatibility of high-voltage electric vehicle platform with low-voltage battery charger, an integrated Boost charging system was introduced by adapting the electrical machine and motor controller of the electric drive system. Different operating characteristics of the two-phase interleaved parallel boost converter were analyzed, an AC smallsignal model was established using the state-space averaging method, and a voltage-current dual closed-loop PI control system was designed and simulated. The results show that the dual closed-loop control strategy can realize the dynamic control of the two-phase interleaved parallel converter with small current ripple and stable output voltage, which suits to
electric vehicles.

Key words: electric vehicle, interleave, Boost converter, closed-loop control