Adaptive backstepping PI sliding-mode control for interior permanent magnet synchronous motor drive systems

Abstract

An adaptive backstepping PI sliding-mode control is proposed for speed control of the drive of an interior permanent magnet synchronous motor (IPMSM) subjected to load disturbances. First, a nonlinear model with uncertainties is derived for the IPMSM, and then an adaptive backstepping sliding-mode controller incorporating a linear load torque estimator is designed. Next, the parametric uncertainties of the model are handled with adaptive laws in the design of the controller. To attenuate the chattering problem without sacrificing the feature of the sliding-mode control, an adaptive PI-saturation function is used to approximate the signum function within the boundary layer. Asymptotic stability of the proposed control method is proven by Lyapunov stability theory and Barbalat's lemma. A digital signal processor, TMS320LF2407, is adopted to implement the proposed control scheme. The experimental results show that the proposed system can effectively reduce the chattering phenomenon and has fast transient response, good load disturbance rejection response, and good tracking response. 978-1-4577-

High Performance Direct Torque Control of Electrical Aerodynamics Load Simulator using Fractional Calculus

“…In order to formulate high performance control for servo drive, several controllers are proposed using backstepping method. A high performance torque controller is proposed in [16], adaptive position control using fuzzy and neural network in [17,18] and integral backstepping methods are proposed and validated [19][20][21][22]. A robust IMC-PID controller is formulated using H-infinity and model matching approach [23].…”