汽车工程 ›› 2024, Vol. 46 ›› Issue (2): 281-289.doi: 10.19562/j.chinasae.qcgc.2024.02.010

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车用永磁同步电机无电流传感器控制研究

张念忠,宋强(),王冠峰,王明生   

  1. 北京理工大学,电动车辆国家工程实验室,北京 100081
  • 收稿日期:2023-07-02 修回日期:2023-08-04 出版日期:2024-02-25 发布日期:2024-02-23
  • 通讯作者: 宋强 E-mail:songqiang@bit. edu. cn
  • 基金资助:
    国家重点研发计划(2016YFB0100605)

Research on Non-Current-Sensor Control of Permanent Magnet Synchronous Motor for Vehicle

Nianzhong Zhang,Qiang Song(),Guanfeng Wang,Mingsheng Wang   

  1. Beijing Institute of Technology,National Engineering Laboratory for Electric Vehicles,Beijing  100081
  • Received:2023-07-02 Revised:2023-08-04 Online:2024-02-25 Published:2024-02-23
  • Contact: Qiang Song E-mail:songqiang@bit. edu. cn

摘要:

针对电动汽车车载环境复杂多变,影响电流传感器测量精度,更恶劣情况会导致电机驱动系统一相或多相电流传感器发生故障失效问题,因此基于扩展卡尔曼滤波提出一种无电流传感器控制算法,利用永磁同步电机定子电压、转子位置和转速信息重构电机定子电流,并针对无电流传感器算法导致的系统延迟问题设计了前馈补偿环节来改善系统动态性能,并对所提算法进行加减速及鲁棒性实验,仿真及实验结果均验证了所提方法的有效性。

关键词: 电动汽车, 扩展卡尔曼滤波, 无电流传感器, 前馈补偿

Abstract:

In view of the complex and changeable vehicle environment of electric vehicles, which affects the measurement accuracy of current sensors, and the worse situation will lead to the failure of one-phase or multi-phase current sensors in the motor drive system, therefore, a non-current-sensor control algorithm based on extended Kalman filter is proposed in this paper. The stator current of the motor is reconstructed by using the stator voltage, rotor position and speed information of the permanent magnet synchronous motor, and the feed forward compensation is designed to improve the dynamic performance of the system regarding the system delay caused by the non-current-sensor algorithm. The acceleration and deceleration and robustness tests of the proposed algorithm are carried out. The effectiveness of the proposed method is verified by the simulation and experimental results.

Key words: electric vehicle, extended Kalman filtering, non-current-sensor, feed-forward compensation