Decoupling control strategy for high speed permanent magnet synchronous motor based on inversion system method

This paper proposes a new decoupling control for high speed permanent magnet synchronous motor (HS-PMSM) based on the least squares support vector machine (LS-SVM) inversion system. And the online LS-SVM inverse controller is developed for the pseudo-linear system. Considering of the parameter regulating process of the LS-SVM, a proportional integral derivative (PID) controller is combined to improve the control performance in the initial stage. According to the comparative simulation results, the utility of the proposed control strategy is demonstrated by the decoupling control, speed tracking and load anti-perturbation performance at wide speed range.