Performance Enhancement of a wind energy conversion System based on Brushless doubly fed induction machine Using PI Controller.

Abstract

– This paper discusses the control a new topology of a brushless doubly-fed (induction) machine (BDFM) using back-to- back PWM converters and its application to variable speed wind energy generation. The goal of BDFM control is to achieve a similar dynamic performance to the doubly fed induction machine (DFIM), exploiting the well-known induction motor vector control philosophy. For this purpose, a recently developed unified reference-frame model has been used to develop the vector control strategy. The control strategy for flexible power flow control is developed. Currently the BDFM has been the subject of current investigation and it shows to be a valid alternative for wind energy applications.