永磁直线电机扰动力的在线辨识与补偿  

Online Identification and Compensation of Ripple Force in Permanent Magnet Linear Motors

作　　者：孙静娜[1] 肖勇[1] 葛晓宇[1] 潘佩琦[1] 

机构地区：[1]沈阳化工大学信息工程学院,辽宁沈阳110142

出　　处：《沈阳化工大学学报》2013年第3期254-257,共4页Journal of Shenyang University of Chemical Technology

基　　金：留学回国人员科研启动基金(2013693)

摘　　要：研究双永磁直线电机(PMLM)同步控制系统.根据系统阶跃响应分析扰动力的动态特征,获取扰动力的波动频率.提出系统参数的在线辨识算法,并运用前馈补偿来减小扰动力对系统同步性能的影响.仿真结果表明:该控制方法能显著减少系统电机之间的同步误差,进而提高系统的鲁棒性.This paper studies the synchronous control system with double permanent magnet linear mo- tors. Firstly, the dynamic characteristic of ripple force in motors based on the step response of system is analyzed, so that frequency of ripple force is obtained. Then, the algorithm of online identification to sys- tem parameters is proposed, and feedforward compensation is applied so that the influence of ripple force on synchronization performance can be minimized. The simulation results show that the proposed scheme can reduce synchronization error between the two motors, and the robustness of the system can be improved.

关 键 词：永磁直线电机 参数辨识 前馈补偿 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]