基于有限时间控制的永磁同步电机位置伺服系统_刘慧贤.pdfVIP

th Proceedings of the 27 Chinese Control Conference July 16-18, 2008, Kunming,Yunnan, China 基于有限时间控制的永磁同步电机位置伺服系统* 刘慧贤，丁世宏，李世华，陈夕松 东南大学自动化学院，南京 210096 E-mail: lsh@seu.edu.cn 摘 要：基于有限时间控制技术，对永磁同步电机伺服系统的位置控制问题进行了研究。利用反步构造法，对系统的 位置环提出了一种基于反馈线性化和有限时间控制技术的策略。对干扰情况下闭环系统的性能进行了严格的数学分 析。结果表明：与传统的基于PD和反馈线性化的控制方案相比，本文的控制方案不仅使得闭环系统的位置跟踪误差具 有更快的收敛速度，而且通过调节控制器参数可以使稳态误差的边界更小，系统具有更强的抗干扰能力。仿真结果验 证了该方法的有效性。 关键词：永磁同步电机, 位置控制, 有限时间控制, 反步构造法, 反馈线性化 A PMSM Position Servo System Based on Finite-time Control Liu Huixian, Ding Shihong, Li Shihua, Chen Xisong School of Automation, Southeast University, Nanjing 210096, P.R.China. E-mail: lsh@seu.edu.cn Abstract: Based on the finite-time control technique, the position control problem of Permanent Magnet Synchronous Motor(PMSM) servo system is studied. Using backingstepping method, a control scheme based on feedback linearization and finite-time control technique is proposed for position loop. Rigorous mathematical analysis is given for the close loop system performance in the presence of disturbances. The results show that, compared with the conventional control scheme based on PD and feedback linearization, this method not only makes the position tracking error of the closed loop system with a faster convergence rate, but also makes the boundary of steady-state error smaller by regulating the controller parameters, which means the closed loop system has stronger disturbance rejection property. The simulation results validate the efficiency of this method. Key Words: PMSM, Position control, Finite-time control, Backstepping method, Feedback linearization