Wind turbine generators: Conventional and emerging technologies

Abstract

This paper discusses the currently used generator systems in wind energy conversion systems and some of the newer concepts with their technical features. The Brushless doubly fed induction generator, Brushless doubly fed reluctance generator and the Switched reluctance generator are viable alternatives for wind power applications. This paper also highlights the hybrid wind generator solutions which is an emerging trend in hybrid renewable energy solutions. Using the appropriate control techniques, these generator technologies unlike the conventional wind turbine generator can produce constant wind power irrespective of the changes in velocity of wind speed. This has tremendous application in Africa as the installed capacity increases and the need to provide remote communities with electricity remains paramount. The merits and demerits of the various technologies are uniquely grouped in a novel way to aid decision making based on available resources.