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首页> 外文期刊>Journal of power electronics >A Robust Dynamic Decoupling Control Scheme for PMSM Current Loops Based on Improved Sliding Mode Observer
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A Robust Dynamic Decoupling Control Scheme for PMSM Current Loops Based on Improved Sliding Mode Observer

机译：基于改进滑模观测器的永磁同步电机电流环鲁棒动态解耦控制方案

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摘要

A complete current loop decoupling control strategy based on a sliding mode observer (SMO) is proposed to eliminate the influence of current dynamic coupling and back electromotive force (EMF) in the vector control of permanent magnet synchronous motors. With this strategy, current dynamic decoupling and back EMF compensation can be simultaneously achieved. Unlike conventional methods, the proposed strategy can avoid the disturbances caused by the parametric variations of motor systems and maintain the advantages of proportional integral (PI) controllers, which are robust and easy to operate. An improved SMO, which uses a special PI regulator other than a linear saturation function as the equivalent control law in the boundary layer of a sliding surface, is proposed to eliminate the estimated errors caused by the quasi-sliding mode and obtain a satisfactory decoupling performance. The stability and parameter robustness of the proposed strategy are also analyzed. Physical experimental results are presented to verify the validity of the method.
机译：提出了一种基于滑模观测器（SMO）的完整电流环解耦控制策略，以消除电流动态耦合和反电动势（EMF）对永磁同步电动机矢量控制的影响。通过这种策略，可以同时实现当前的动态去耦和反电动势补偿。与常规方法不同，所提出的策略可以避免由电动机系统的参数变化引起的干扰，并保持比例积分（PI）控制器的优点，即鲁棒且易于操作。提出了一种改进的SMO，该方法使用线性饱和函数以外的特殊PI调节器作为滑动面边界层中的等效控制律，以消除由准滑动模式引起的估计误差并获得令人满意的去耦性能。 。还分析了所提出策略的稳定性和参数鲁棒性。提出了物理实验结果以验证该方法的有效性。

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