Vector control of induction motor using a sliding mode controller with chattering reduction

This work deals with vector control applied to the three phase induction motor (IM), using the indirect field oriented control (IFOC) technique. In the proposed topology, sliding mode controller with chattering reduction is applied, aiming high dynamic performance in a wide speed range and robust to load disturbances. Therefore, an approach with soft switching hyperbolic tangent function on the controllers is proposed. In order to analyze the control versatility, the usage of the controller in dq axes stator currents, rotor flux and mechanical speed is proposed. The performance of the motor is verified by means of numeric simulations and experimental tests, where good tracking results are obtained.