摘要
针对面贴式永磁同步电机(SPMSM),在高频信号注入无位置传感器运行控制中的系统不稳定因素及位置估计误差,研究一种改进的调制方法及位置补偿控制方法。在分析高频信号注入法的基础上,深入分析了信号调制中滤波器的相位偏移对系统稳定性的影响,以及电机高频模型不精确导致的位置估计误差。通过在Matlab/Simulink中搭建模型系统仿真和在dSPACE系统仿真平台实验的方法对控制系统进行设计验证。仿真及实验结果表明了带有改进的调制方法及位置补偿方法的控制系统具有良好稳定性及位置误差补偿效果。
A control system with improved modulation method and position compensation method is studied to solve the problems of unstable factors and the location estimation error in high frequency signal injection sensorless control system for SPMSM.Based on the analysis of the high frequency signal injection method,the influence of the phase shift of the filter on the stability of the system and the inaccurate position estimation error caused by the high frequency model of the motor are analyzed.The control system is designed and simulated in Madab/Simulink and the simulation platform of dSPACE system.The simulation and experimental results show that the control system with improved modulation method and position compensation method has good stability and position error compensation effect.
作者
李玉东
易庚
李凯存
LI Yu-dong YI Geng LI Kai-cun(School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo 454003, Chin)
出处
《测控技术》
CSCD
2017年第6期66-71,75,共7页
Measurement & Control Technology
基金
河南省科技厅科技攻关项目(132102210126)
河南省教育厅科学技术研究重点项目(13A470342)
