An Approach for the conception of Intelligent Control for Torque-Ripple Minimization with Varying Parameters in Electrical Motor Drives

Abstract

This paper presents an approach toward the design of a robust control with sliding-mode (SMC) plus y logic control (FLC) for induction motors. As the variations of both control system parameters and operating conditions occur, the conventional control methods may not be satisfied further. Sliding-mode control is robust with respect to both induction motor parameter variations and external disturbances. By embedding a fuzzy logic control into the sliding-mode control, the chattering (torque-ripple) problem with varying parameters, which are the main disadvantage in sliding-mode control, can be suppressed, Simulations results of the proposed control theme present good dynamic and steady-state performances as compared to the classical SMC from aspects for torque-ripple minimization, the quickly dynamic torque response and robustness to disturbance and variation of parameters.