PMSM的H_∞鲁棒跟踪控制器的设计

Design of H_∞ Robust Tracking Controlling for PMSM

由于永磁同步电机(PMSM)所具有的非线性、强耦合、高时变等特点,传统的经典控制方法对永磁同步电机很难取得很好的控制效果,且鲁棒性较差。这一问题随着鲁棒控制理论的出现,得到了较好的解决。该文提出了一种基于H∞控制理论所设计的鲁棒控制器,能够对控制系统参数的变化和外界扰动进行有效的控制,并较好地抑制其对系统的动态性能的影响。仿真结果表明了本文方法的有效性。

Due to nonlinear characteristics,strong coupling and strong time-varying of permanent magnet synchronous motor,it was difficult for the traditional classical control approaches to get a satisfied performance and the robustness was bad. Along with the robust control theory,there is a better solution to this problem. Based on H∞ control theo- ry,a new robust controller was proposed in this paper. The robust controller was able to control the system with pa- rameter changes and external disturbances effectively,and can suppress the impact on the system from parameter changes and external disturbances. The simulation results show that the approaches proposed was effective in this paper.