1. Annual Report: Global Wind Energy Outlook;Global Wind Energy Council,2013
2. PM wind generator topologies;Chen;IEEE Trans. Ind. Appl.,2005
3. Research report on models for numerical evaluation of variable speed different wind generator systems;Li1,2007
4. DFIG-based wind power conversion with grid power leveling for reduced gusts;Ganti;IEEE Trans. Sustainable Energy,2012
5. Small Wind Turbine Market Report Year Ending;American Wind Energy Association,2011