基于滑模自抗扰的永磁同步电机控制

针对基于自抗扰原理的永磁同步电机控制存在待整参数多和参数物理意义不明显等问题，提出 一种改进滑模自抗扰控制算法。首先，利用滑模趋近律构建出最优控制函数，将扩张状态观测器及非线性误 差反馈控制律中的 fal 函数用最优控制函数代替，从而减少待整参数，完成对非线性自抗扰控制器结构的优化。 其次，使用李雅普诺夫函数对改进滑模自抗扰控制器的稳定性进行分析。最后，采用 Matlab 仿真验证该算 法的可行性。仿真结果表明：永磁同步电机调速系统采用改进滑模自抗扰控制器后，既能保留非线性自抗扰 法无超调起动和抗负载扰动能力强的优点，又能提高永磁同步电机调速系统的动态稳态性能。

Permanent Magnet Synchronous Motor Control Based on Sliding Mode Active Disturbance Rejection

In view of the existential problems of many parameters to be adjusted and unclear physical meaning of parameters in the control of permanent magnet synchronous motor based on active disturbance rejection principle, an improved sliding mode active disturbance rejection control algorithm has thus been proposed. Firstly, the optimal control function is constructed by using the sliding mode reaching law, with the fal function in the extended state observer and non-linear error feedback control law to be replaced by the optimal control function, thus reducing the parameters to be adjusted and optimizing the structure of the non-linear ADRC. Secondly, Lyapunov function is used for an analysis of the stability of the improved sliding mode ADRC. Finally, Matlab simulation is used for the verification of the feasibility of the algorithm. The simulation results show that the improved sliding mode ADRC can not only retain the advantages of non-overshoot starting and strong anti-load disturbance ability of non-linear ADRC method, but also improve the dynamic and steady-state performance of permanent magnet synchronous motor speed regulation system.