The aim of this chapter is to present an overview of the state of technology
and discuss some technology tendency in the Power Electronics (PE) used for Wind
Power Applications (WPA). Firstly, technological and commercial developments in
wind power generation are generally discussed. Next, the wind turbine concept is
illustrated and explained using different types of generator. The control structure of
wind-turbines (WTs) is explained using DFIG, Asynchronous and Synchronous
Generator (ASG and SG). Finally, the last section focuses on a detailed literature
review describing DFIG based wind turbine-generator systems in terms of modeling
and control strategies.
Keywords: A wound rotor induction generator (WRIG), Asynchronous and
Synchronous Generator (ASG and SG), Doubly Fed Induction Generator (DFIG),
Wind Turbines (WTs), Wind Power Applications (WPAs).