基于自抗扰的内置式永磁同步电机矢量控制

Vector Control of Interior Permanent Magnet Synchronous Motor Based on Active Disturbance Rejection Controller

内置式永磁同步电机广泛采用基于比例积分控制器的矢量控制策略。高速或重载时,该方法解耦不充分,使系统动态性能变差;比例积分控制器的采用,又使系统存在超调及参数适用范围窄的问题。针对这些问题,基于自抗扰技术,重新设计了电流和转速调节器,并对两种控制策略的性能进行了全面比较。仿真结果表明,所提控制策略具有更好的动态性能,对电机参数变化不敏感,参数易调节且适用范围更广。

The vector control strategy based on proportional integral controllers is widely used in the control of interior permanent magnet synchronous motor. When motor works in high speed or heavy load situation,this approach results in bad dynamic performance owing to insufficient decoupling. The adoption of proportional integral controllers leads to overshoots and narrow range of suitable parameters. The current and speed regulators based on active disturbance rejection control technique were redesigned to solve these problems,and the performance of two control strategies were comprehensively compared. Simulation results show that the proposed control strategy has better dynamic performance,insensitivity to the change of motor's parameters,the parameters are easy to adjust and have wider valid range.