The inverse decoupling control of permanent magnet synchronous motor

A new modeling method of the inverse decoupling control system of permanent magnet synchronous motor is proposed in this paper. First, the invert system of PMSM is obtained after the reversibility analysis of PMSM. Second, the invert system is dynamic compensated with the value of feedback. Finally, the inverse system, the dynamic compensates module and the original system of PMSM cascades and composites into two pseudo-linear subsystems. So the dynamic decoupling control between speed and electromagnetic torque will realize. Simulation result shows that the whole control system has good dynamic and static performance and has good robustness.