基于模糊滑模控制及谐波电压补偿器的永磁同步电机复合控制方法

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关键词：永磁同步电机；模糊滑模控制；谐波电压补偿器；转速控制中图分类号：TM341；TP273 文献标识码：Adoi：10.37188/OPE.20253320.3239 CSTR：32169.14.OPE.20253320.3239

Abstract： In order to improve the anti-disturbance capability and steady-state control accuracy of permanent magnet synchronous motor control systems，this paper proposed a composite control method integrating fuzzy sliding mode control and a harmonic voltage compensator. To address the inherent chattering is sue in sliding mode control，a fuzzy sliding mode convergence law was designed．This convergence law utilized the system states to define fuzzy rules that dynamically adjusted the gain of the exponential term.Concurrently，it replaced the fixed parameter in the switching term with an adaptive function，enabling dynamic adaptation. This design effectively suppressed sliding mode chattering while maintaining system robustness and dynamic response performance. To mitigate the pulsating harmonics issue in the motor control system，a harmonic voltage compensator based on a second-order generalized integral filter was developed.This compensator employed the second-order generalized integral filter to extract harmonic components present in the stator curent signal. Subsequently，it implemented control and provided online compensation for these extracted harmonic components. Consequently，current pulsating harmonics within the system were significantly attenuated，leading to enhanced speed control accuracy. Experimental results demonstrate that，compared to the conventional PI control method，the implementation of the proposed composite control method yields a 44.36% improvement in the system's dynamic response speed，a （204号 30.38% reduction in the maximum rotational speed fluctuation during sudden torque disturbance，and a reduction of the 6th harmonic pulsating component in the q-axis current to 0.77×10-3 . These results confirm that the proposed composite control method efectively enhances the system's dynamic response performance，robustness，and rotational speed control accuracy.

Key Words： permanent magnet synchronous motor； fuzzy sliding mode control; harmonic voltage com-pensator；rotation speed control

1引言

目前，永磁同步电机（PermanentMagnetSynchronousMotor，PMSM）被广泛应用于航空航天、新能源汽车、工业伺服等高精度控制领域[1-2]。（剩余16016字）