Control of a Grid Connected Doubly-Fed Induction Generators for Wind Energy Conversion

TitleControl of a Grid Connected Doubly-Fed Induction Generators for Wind Energy Conversion
Publication TypeConference Paper
Year of Publication2009
AuthorsDas, M K, S.Chowdhury, S.P.Chowdhury, C.T.Gaunt
Conference NameProceedings of the 44th International Universities Power Engineering Conference
Date PublishedSeptember
Conference LocationUniversity of Strathclyde
KeywordsGenerator dynamics and control 1 Renewable Energy Systems
Abstract

With improving techniques, reducing cost and low environmental impact, wind energy seems certain to play a major role in the worlds energy future. This paper deals with a variable speed device to produce electrical energy on a power network, based on a DFIG due to its many advantages such as the improved power quality, high energy efficiency and controllability, etc. First, a mathematical model of the DFIG written in an appropriate d-q reference frame is established to investigate simulations. Secondly, control the power flowing between the stator of the DFIG and the power network, a control law is synthesized using two types of controllers: PI and Pitch angle (Pitch-to-feather) controller. Their respective performances are compared in terms of power reference tracking, response to sudden speed variations, sensitivity to perturbations and robustness against machine parameters variations.