Power control of doubly fed induction machine using a rotor side matrix converter

This paper presents the control of a doubly fed induction machine (DFIM) via a matrix converter applied to the machine's rotor side. The experimental set-up shall be used to show its viability for wind energy applications. Stator Field Oriented control of the machine was implemented for active and reactive power control. The effects of rotor side current harmonics, on the control scheme were analysed. The paper also presents experimental results for active and reactive power control for the variable speed DFIM including operation at zero Stator Reactive power.