基于频域指标的PMSM伺服系统自适应控制方法  

Adaptive Control Method of PMSM Servo System Based on the Frequency-response Characteristics

作　　者：王东文[1] 王志飞[1] 李崇坚[1] 宋词[1] 

机构地区：[1]冶金自动化研究设计院,北京100071

出　　处：《电力电子技术》2016年第10期73-75,88,共4页Power Electronics

摘　　要：永磁同步电机(PMSM)构成的伺服控制系统在运行过程中,电机参数会随着工作环境的变化而发生改变,导致控制精度受到很大影响。针对此问题,提出了一种基于参数辨识的自适应控制方法,利用带遗忘因子的递推最小二乘算法对电机电阻和电感进行在线辨识,根据系统对相角裕度要求,利用辨识结果实时计算出运行条件下的比例积分(PI)参数值。仿真和实验结果表明系统在电机参数发生变化时具有良好的自适应能力。In servo system of permanent magnet synchronous motor （PMSM）, motor parameters vary with the changing working environments,resulting in the precision of control system to be affected.In order to solve this problem,an on-line adaptive control based on parameter identification is proposed.Using recursive least squares method with for- getting factor, the motor resistance and inductance are identified.Based on the requirement of the system for the phase margin,the parameters of proportional integral（P I） regulator are obtained in real-time operating conditions.Si- mulation and experiments illustrate that the system has good adaptive capacity when the motor parameters change.

关 键 词：永磁同步电机 伺服 自适应控制 

分 类 号：TM3[电气工程—电机]