Changes
/* Insights */
==Insights==
* USA, China, Germany, Spain and India share major part of wind energy generation.
* Vestas Wind Energy Systems and General Electric are the major players in this technology.
* Patenting activity has seen high growth rate in the last two years.
* Research activity mainly going on rating and controlling of the Doubly- fed induction generation systems.
* Continuous Operation of the DFIG system during weak and storm winds, during grid voltage sags and grid faults is one of the main concerns to the companies.
* Woodward Seg is a new and fast developing player in this technology.
* Brush-less operation technology reduces the wear and tear and increases the efficiency and life of the system. This technology is protected by small players, in which dual stator technology plays major role.
==Brief History of Wind Energy==
