Robust observer-based adaptive sliding modes control of synchronous motor

Abstract

Based on a nonlinear complete order model of a synchronous motor, a robust sliding mode observer-based control scheme is proposed. To design this scheme, a sliding mode (SM) super-twisting control algorithm and adaptive backstepping technique, are implemented. A nonlinear observer with a 3rd order SM super-twisting algorithm is designed to estimate the rotor fluxes in presence of rotor and stator resistances variations. The simulation results show the effectiveness of the proposed controller.