An Adaptive Method for Induction Motor Control

The paper addresses the problem of adapting model-based control laws for induction motors in the presence of uncertainty or parametric variation. A procedure is presented that can be used for the real-time estimation of the parameters and the rotor fluxes of induction motors. The estimation method is based on a standard model of the induction motor, expressed in rotor coordinates. It is assumed that current and position (or velocity) measurements are available. Experimental results are reported, and the ability of the algorithm to rapidly estimate the motor parameters is demonstrated. The results are validated using different experiments and compared with those obtained using a standard frequency response test at standstill.