车用永磁同步电机高性能弱磁控制策略
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作者单位:

中国科学院大学,中国科学院电工研究所

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基金项目:

中国科学院战略先导项目(XDA28040100)


Flux Weakening Control Schemes of Permanent Magnet Synchronous Motors for Electric Vehicles with High Performance
Author:
Affiliation:

1.University of Chinese Academy of Sciences;2.Institute of Electrical Engineering, Chinese Academy of Sciences,

Fund Project:

The Strategic Priority Research Program of Chinese Academy of Sciences

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    摘要:

    提出一种基于电流预测的车用永磁同步电机弱磁控制方法,以提升永磁同步电机弱磁区动态性能。详细分析了弱磁区的电压边界问题,以及不同电压选取规则下的稳定性问题。在此基础上,提出了一种考虑稳定性和动态特性的动态过调制策略。此外,研究了基于参数模型的电流预测控制算法,该算法具有快速动态响应和可控约束的优点,在保证稳定性的基础上有效提升电机弱磁区域动态性能。最后,分别在仿真和实验平台上证明了所提出算法的有效性。

    Abstract:

    A predictive current control method is presented to fulfill the purpose of high steady and dynamic performance in the flux-weakening region of PMSM drives for electric vehicle applications. The voltage limitation problem in the flux-weakening region is analyzed in detail, furthermore, the stability problem of dynamic overmodulation is introduced. Accordingly, a dynamic overmodulation strategy considering stability and dynamic characteristics is proposed. Further, the model-based predictive current control algorithm is investigated, in which the advantages of fast dynamic response and manageable constraints help to improve the stability and dynamic performance in the flux-weakening region. Finally, the effectiveness of the proposed algorithm is ultimately detailed according to simulation and experi-mental results.

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  • 收稿日期:2022-04-03
  • 最后修改日期:2022-04-22
  • 录用日期:2022-05-05
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