A doubly-fed induction generator and energy storage system for wind power applications /

Wind generation has become the most important alternate energy source and has experienced increased growth in Europe during the past decade while more recently, the same trends have been exhibited in North America. Although it has great potential as an alternative to less environmentally friendly energy sources, there are various technical challenges that cause wind to be regarded negatively by many utilities. Others are hesitant to accept its widespread implementation, particularly when the penetration of wind in a given area is high.This work presents the addition of an energy storage system to a wind turbine design.Various advantages are exhibited for the wind turbine with energy storage. Firstly, the generator is capable of accurately controlling the output power of the generator and inevitably of the wind park. Reactive power requirements are also reduced as a result of a more stable voltage at the point of interconnection. In addition, improved transient performance is exhibited for various local disturbances