Modeling and real time simulation of a DFIG-based wind energy conversion system

Abstract

As a result of the increasing environmental concern, more and more electricity is generated from renewable sources. Wind power is one of the most reliable sources of renewable energy in the 21st century and helps to meet the national energy demand when there is diminishing trend in terms of non-renewable resources. The performance and efficiency of any wind energy conversion system (WECS) depends upon the characteristics of the components constituting it. One of the most predominant WECS in literature consists of a doubly fed induction generator (DFIG) and a unidirectional power converter controlled by a vector control strategy. In this paper, a DFIG-based wind power system is analyzed, modeled and simulated. The effect of real time simulation and the choice of the used fixed step are discussed and evaluated. The technology's advantages, requirements and related improvements are underlined and results are generalized.