电工技术学报2016，Vol.31Issue(23)：38-45,8.
基于实时负载转矩反馈补偿的永磁同步电机变增益PI控制
Variable Gain PI Control Method for Permanent Magnet Synchronous Motor Based on Load Torque Feedback Real-Time Compensation
摘要
Abstract
In order to reduce the effects caused by load torque disturbances,the frequency characteristics of permanent magnet synchronous motor(PMSM)servo system speed response model under load torque disturbance are studied.Based on the relationship between the speed fluctuation caused by load torque disturbance and the parameters of speed PI regulator,a variable gain PI(VGPI)control method for PMSM based on load torque feedback compensation is proposed.According to the variation of the specific frequency component of speed,the variable PI controller gain can be real-time modified in this control strategy.Meantime,a load torque observer based on Kalman Filter is designed and implemented by FPGA,which guarantees that the variation of load torque can be observed and compensated in real time.The capacity of load torque disturbance rejection of PMSM system is improved.Experimental results are given to verify the validity of the control scheme.关键词
永磁同步电机/负载转矩扰动/变增益PI/负载转矩观测器Key words
Permanent magnet synchronous motor(PMSM)/load torque disturbance/variable gain PI (VGPI)/load torque observer分类
信息技术与安全科学引用本文复制引用
关欣,李叶松..基于实时负载转矩反馈补偿的永磁同步电机变增益PI控制[J].电工技术学报,2016,31(23):38-45,8.基金项目
国家科技重大专项项目资助(2012ZX04001-022). （2012ZX04001-022）
