Predictive sliding surface control of squirrel cage induction motor fed by a voltage source inverter: experimental validation and analyses

Abstract

This paper introduces a novel predictive sliding surface control ((PSC)-C-2) strategy for ac-drive applications. The proposed predictive sliding mode control routine is inspired by the model's indirect field-oriented control strategy, including the sliding mode stability criterion. The (PSC)-C-2 method uses the sliding surface function as an objective function to regulate the closed-loop dynamics. The multi-objective objective function is reformulated as a sliding surface function. The feasible control input that guarantees the sliding mode control stability criterion is selected as an optimum control input. The proposed (PSC)-C-2 method is skillful at effectively regulating the stator current, mechanical speed, and torque. The proposed idea is experimentally validated using a hardware setup. The experimental results demonstrate that the proposed control strategy offers a robust squirrel cage induction motor (SCIM) control operation and quick responses to ac load variations. Comprehensive comparison results between the proposed method and the traditional feedback strategies are presented.