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

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.