Control of DFIG under unbalanced grid voltage conditions: A literature review

Abstract

Because of increasing generation of electricity from non-conventional sources all over the world including India, there is heavy demand for Doubly Fed Induction Generator (DFIG) as it possess several merits over other conventional generators. This papers presents a literature review for control of DFIG based wind energy conversion systems under unbalanced grid voltage conditions. Various techniques of control such as conventional control, vector control, direct and predictive controls etc are covered in this work. Further in this paper, a comparative analysis is presented in tabular for better understanding of this work.