摘 要:针对传统永磁同步电机直接转矩控制系统中存在的PI控制器的不足和转矩、磁链脉动大等问题,提出了基于模糊零矢量和自抗扰技术的控制策略。仿真结果表明,基于自抗扰技术的永磁同步电机直接转矩模糊控制系统可以有效地改善系统响应速度和抗扰性。同时,能明显减小转矩、磁链脉动,改善系统运行性能。
关键词:永磁同步电机;直接转矩控制;模糊零矢量;自抗扰控制
Abstract: Aiming at the disadvantage of PI controller and the problems of Large torque and flux ripple in Traditional direct torque control(DTC) system of Permanent Magnet Synchronous Motor(PMSM).A new DTC method is proposed,which uses the controller based on fuzzy