微特电机 ›› 2025, Vol. 53 ›› Issue (5): 52-60.

• 驱动控制 • 上一篇    下一篇

面向退磁的永磁同步电机转矩补偿控制

艾  强1,2,魏洪乾1,赵文强1,翟  涌1,2,张幽彤1,2
  

  1. 1. 北京理工大学 清洁车辆重点实验室,北京 100081;2. 北京理工大学长三角研究院( 嘉兴) ,嘉兴 314019
  • 收稿日期:2025-02-21 出版日期:2025-05-28 发布日期:2025-05-28
  • 基金资助:
    河北省省级科技计划项目( 23227601Z) ; 国家自然科学基金青年科学基金项目( 52202461)

Demagnetization Oriented Torque Compensation Control of Permanent Magnet Synchronous Motors

AI Qiang1,2, WEI Hongqian1, ZHAO Wenqiang1, ZHAI Yong1,2, ZHANG Youtong1,2#br#   

  1. 1. Low Emission Vehicle Research Laboratory,Beijing Institute of Technology,Beijing 100081, China;
    2. Yangtze Delta Region Academy of Beijing Institute of Technology,Jiaxing 314019, China
  • Received:2025-02-21 Online:2025-05-28 Published:2025-05-28

摘要: 为提高永磁体退磁条件下电机的转矩输出能力,提出了面向退磁的永磁同步电机转矩补偿控制方法。
基于气隙磁密测量数据对永磁同步电机的磁链进行重构;根据数值模型实时估计电机的输出转矩,实现转矩闭环方
案,提高电机转矩的利用率;针对电机过热和退磁故障问题,对电机定子电流限值加以干预,保证电机功率的合理工
作范围;基于电机测试平台,对提出的控制方法进行负载工况试验验证。 结果表明,在电流限定值范围内所提出的
转矩补偿控制方法能显著保持电机的转矩输出能力,转矩利用率提高了 3. 4%。

关键词: 新能源汽车, 永磁同步电机, 退磁, 转矩补偿控制

Abstract: In order to improve the output torque of permanent magnet synchronous motor under demagnetization
conditions, a demagnetization oriented torque compensation control method of permanent magnet synchronous motors was
proposed. The flux linkage of the permanent magnet synchronous motor was reconstructed based on the air gap flux density
measurement data and the output torque of the motor was estimated in real time according to the numerical model, so as to
realize the torque closed-loop scheme and improve the utilization rate of the motor torque. In addition, in view of the motor
overheating and demagnetization fault problems, the motor stator current limit was intervened to ensure the reasonable
working range of the motor power. The proposed control method was verified on the test bench under the load conditions.
The results showed that within the current limit range, the proposed torque compensation control method can significantly
maintain the torque output capability of the motor and the torque utilization was increased by 3. 4%.

Key words: new energy vehicle, permanent magnet synchronous motors ( PMSM ), demagnetization, torque compensation control

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