Loop-shaping H∞ control for a doubly fed induction motor

This paper deals with a doubly fed induction machine (DFIM) where both sides are supplied by two PWM inverters. The study consists in elaborating a robust vector control of the machine by the loop- shaping Hinfin approach. The Hinfin loop-shaping theory is presented in brief; then it is applied to the control of the DFIM. The simulation results prove that the implementation of the Hinfin controllers for currents, fluxes and speed loops leads to excellent robustness in stability and good dynamic performance even with large electrical and mechanical parameters uncertainty.