摘要
分析了采用矢量控制的永磁同步电机(PMSM)的电流测量误差与电流指令值之间的关系,提出了一种电流测量误差补偿策略。在同步静止坐标系下,从实测电流中减去低通滤波的电流指令值,提取出电流测量误差分量,通过反馈控制有效避免了电机转速和转矩的脉动。该误差补偿策略通过简单的减法,有效地消除了外环控制器的干扰,并能显著提高误差补偿器的动态控制性能。仿真结果证明了电流测量误差补偿策略的有效性和良好的动态性能。
The relationship between current measurement error and current instruction value of the vector controlled permanent magnet synchronous motor(PMSM)was analyzed in detail.An error compensation strategy for current measurement was proposed.In the synchronous stationary coordinate system,the error component of the current measurement was extracted by subtracting the current instruction value of the low pass filter from the measured current.The error compensation strategy can effectively eliminate the interference of the outer controller by simple subtraction,and can significantly improve the dynamic performance of the error compensator.The simulation results show that the error compensation strategy is effective and has good dynamic performance.
作者
王红艳
WANG Hongyan(School of Electrical Engineering&Mechano-electronic Engineering,Xuchang University,Xuchang Henan 461000,China)
出处
《微电机》
北大核心
2019年第12期85-89,共5页
Micromotors
基金
河南省科技厅科技攻关项目(172102310366)
许昌市科技计划项目(20160211102)
许昌学院科研项目(2018YB017)
