永磁同步电机的线性自抗扰控制及其参数整定研究

Permanent Magnet Synchronous Motor Speed Control System Based on Linear Active Disturbance Rejection Control and its Parameter Adjustment

针对永磁同步电机调速系统存在的非线性、强耦合、多变量、参数摄动等问题。研究基于自抗扰技术的交流永磁同步电机直接转矩控制系统。为简化设计采用线性化的自抗扰控制算法,并对算法中的参数调整给出经验性的选取原则。仿真结果表明,该控制算法能够提高永磁同步电机调速系统的响应速度,减小稳态误差,无超调量,且抗干扰性和鲁棒性较强。

An Active Disturbance Rejection Control( ADRC) algorithm for the permanent magnet synchronous motor( PMSM) direct torque control system is designed,for the PMSM is a nonlinear,strong coupling,multi-parameter perturbation variable system. The algorithm proposes a way of linear of the ADRC controller owing to the difficulty in parameters adjustment of ADRC. The simulation results show that this method can not only quicken the speed-response of system without over-shooting,but also reduce the error of the steady state. Further more,it is more robust to the load-mutation and load-disturbance.