适用于惯量不匹配下PMSM转速控制的AS-HESO

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关键词：永磁同步电机；扩张状态观测器；转动惯量；转速控制；参数自适应控制DO1：10. 15938/j. emc.2025.09.002中图分类号：TM341;TM351 文献标志码：A 文章编号：1007-449X（2025）09-0014-12

Abstract：The load inertia in permanent magnet synchronous motor speed control system is always unknown in practice. When the nominal inertia which is used as an observer parameter mismatches the actual inertia of the system，the transfer function of the system basedon the conventional extended state observer will have conjugate poles. As a result， overshoot and oscilltions occur during speed control. To address this，an improved high-order extended state observer （HESO）was proposed.By additionally observing lumped disturbance diffrential term and actively adjusting the location of zero-poles，this observer maintains good dynamic control performance under inertia mismatch. Meanwhile，an adaptive switching logic based on speed tracking error was introduced. And HESO based on adaptive switching logic （AS-HESO）was further developed incorporating this adaptive switching logic， which enhances the system’s disturbance rejection ability in steady state. The speed control strategy based on the proposed observer exhibits smaller overshoot，faster dynamic response speed and stronger robustness to variations in the moment of inertia. The feasibility and efectiveness of the strategy is verified on a laboratory permanent magnet synchronous motor drive system.

Keywords： permanent magnet synchronous motor（PMSM） ;extended state observer （ESO）; inertia; speed control ;adaptive control

0引言

永磁同步电机（permanent magnet synchronousmotor，PMSM）因其运行可靠和高功率密度、高效率等优势，在工业上取得了广泛的应用[1]。（剩余15444字）