车用永磁同步电机偏差解耦控制系统高速性能的研究

A Research on the High-speed Performance of Deviation Decoupling Control System for Automotive PMSMs

基于永磁同步电机复矢量模型,对转子磁场定向矢量控制下电流控制器的高速性能进行分析。针对励磁电流分量和转矩电流分量之间的耦合问题,运用串联解耦控制理论,提出一种偏差解耦控制方法,并与传统的反馈解耦控制方法进行了对比。仿真和实验结果表明,偏差解耦控制方法具有很好的参数鲁棒性,对谐波扰动起到了抑制作用,高速下也有较好的解耦性能。

Based on the performance of current controller complex vector model for permanent magnet synchronous motors, the high-speed in rotor flux oriented vector control is analyzed. Aiming at the problem of coupling between field current component and torque current component and applying series decoupling control theory, a deviation decoupling scheme is proposed, which is then compared with conventional feedback decoupling control. The results of simulation and experiments show that the deviation decoupling algorithm is robust against parameter change , can suppress harmonic disturbances, and also has a good decoupling performance in high speed.