Changes

Source:[http://www.gwec.net/index.php?id=167 GWEC's Global Wind Report 2009]

* USA, China, Germany, Spain and India share major part of wind energy generation in the year 2010.

* Vestas Wind Energy Systems and General Electric are the major players in wind energy generation technology.

* Continuous Operation of the DFIG system during weak and storm winds, grid voltage sags, and grid faults are major issues in current scenario. Among 28 patents covering DFIG operation, 24 patents are focusing on grid connected mode of operation.

* [http://www.woodward.com/ Woodward GMBH] is a new and fast developing player in the field of DFIG technology,and filed 10 patent applications in the field in year 2010, while it has no prior IP activity.<br><br><br>

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