Gain-Scheduled State Feedback Speed Control of Synchronous Reluctance Motor

Abstract

In this paper, gain-scheduled state feedback speed controller for synchronous reluctance motor with non-linear inductance characteristics is presented. The novelty of the proposed approach is the combination of state feedback control with gain-scheduling designed for complex plant with non-constant parameters. In order to simplify designing process of controller, feedback decoupling method (FDM) is proposed. An augmented model of the plant is utilized to assure high-performance, steady-state error-free operation of the drive. Linear-quadratic optimization method is employed to calculate optimal non-constant coefficients of controller coefficients. Numerical experiments along with robustness analysis indicate high-performance operation of the considered drive.