车用永磁同步电机偏差解耦控制系统性能研究

Research on Deviation Decoupling Control System Performance of Permanent Magnet Synchronous Motor in Vehicle Application

摘要:

针对永磁同步电机转子磁场定向矢量控制中励磁电流分量和转矩电流分量之间的交叉耦合问题，基于串联解耦控制理论，推导出一种励磁电流分量和转矩电流分量的偏差解耦控制方法，并与传统的反馈解耦控制方法进行了对比分析。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，高速下仍然有较好的解耦性能。

Abstract:

The field current component and torque current component can not be decoupled completely in rotor field oriented vector control. According to series decoupling theory, a deviation decoupling method is proposed. The mathematical calculations process of this method is given. The feedback decoupling control and the proposed deviation decoupling control were contrastive analyzed. Simulation and experimental results show that the deviation decoupling algorithm is robust against parameter changes, and has a good decoupling ability in high-speed.