Comparison of PI and PIR regulators for DFIG during unbalanced grid voltage conditions

Abstract

This paper, offerings the control of a doubly fed induction generator (DFIG)-based wind power conversion and the two dissimilar classes of current regulators for a (DFIG) under unbalanced grid voltage conditions: proportional integral resonant (PIR) part and proportional integral (PI) regulator part. To verify the value of the proposed control strategy, simulation results with 500 MVA DFIG topology are presented and discussed in the paper. Finally, simulation studies are carried out on a 500 MVA wind-turbine driven DFIG system under unbalanced grid voltage conditions. All the results are validated by PSCAD simulation.