基于反向递推法的永磁同步电机控制器设计

Design of interior permanent magnet synchronous motor controller based on backstepping method

讨论了基于反向递推设计方法的内埋式永磁同步电机速度控制器设计.通过逐步修正算法以设计镇定控制器,实现系统的全局调节或跟踪.每一步都把状态坐标的变化和一个已知李雅普诺夫函数的虚拟控制系统的镇定函数等联系起来,最终得到一个控制李雅普诺夫函数.仿真研究结果表明,反向递推算法可以有效克服内埋式永磁同步电机的非线性特性,所设计的反馈控制器使闭环系统稳定,且使系统具有良好的跟踪性能.

This paper presents a speed controller for an interior permanent-magnet synchronous motor （IPMSM） based on backstepping method. Through correcting algorithm gradually, a stabilizing controller was designed and global regulation or tracking was achieved. In each step, the transformation of state coordined with a stabilizing function of virtual control system with given Lyapunov function and control Lyapunov function was obtained finaly. The simulation results show that the presented algorithm can overcome the nonlinear characteristics successfully, the designed feedback controller makes the close-loop system stable and has better tracking performances.