永磁同步电机伺服系统的自适应PI调节器控制  

Self-tuning PI Regulator of Permanent Magnet Synchronous Motor Servo System

作　　者：宋词[1] 王东文[1] 陈雪松[1] 周伟 

机构地区：[1]冶金自动化研究设计院伺服系统研究设计所,北京100071 [2]总装某军代局,北京100042

出　　处：《电力电子技术》2013年第4期24-26,共3页Power Electronics

摘　　要：随着电力电子技术和现代控制理论的发展,永磁同步电机(PMSM)构成的交流伺服系统得到了广泛应用。在一些工业现场,由于无法离线测得电机的一些参数,使得传统的PI调节器设计难度增加。此外,随着温度的升高,PMSM电感、电阻发生变化,传统PI调节器的定参数控制,将无法达到预期的控制效果。设计了一种基于在线参数辨识的自适应PI调节器,采用最小二乘法原理,实时获得电机参数,根据PI调节器最优化设计,不断更新PI调节器参数,使系统的鲁棒性增强。通过仿真和硬件系统实验,证明了该方法的可行性,系统在参数发生变化时具有良好的自适应能力。AC servo system constituted by the permanent magnet synchronous motor（PMSM） has a wide range of ap- plications with the development of power electronics technology and modem control theory.However, in some industrial site the motor parameters can not be measured offline, so the parameters of the conventional PI regulator control will not be able to be designed easily.In addition,with the temperature increasing,inductance and resistance of PMSM will change.So the traditional PI regulator won＇t reach the desired control effect as the PI parameters fixed.A self- tuning PI regulator is built which can update the PI regulator parameters constantly with the motor parameters changed based on the least squares method and the online parameter identification.The correctness and good adaptive capacity with the regulator changed is proved by simulation and experiment.

关 键 词：调节器 参数辨识 永磁同步电机 

分 类 号：TM343.2[电气工程—电机]