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Methods and apparatus for cooling wind turbine generators

United States Patent

October 28, 2008
View the Complete Patent at the US Patent & Trademark Office
National Renewable Energy Laboratory - Visit the NREL Technology Transfer Website
A wind turbine generator includes a stator having a core and a plurality of stator windings circumferentially spaced about a generator longitudinal axis. A rotor is rotatable about the generator longitudinal axis, and the rotor includes a plurality of magnetic elements coupled to the rotor and cooperating with the stator windings. The magnetic elements are configured to generate a magnetic field and the stator windings are configured to interact with the magnetic field to generate a voltage in the stator windings. A heat pipe assembly thermally engaging one of the stator and the rotor to dissipate heat generated in the stator or rotor.
Salamah; Samir A. (Niskayuna, NY), Gadre; Aniruddha Dattatraya (Rexford, NY), Garg; Jivtesh (Schenectady, NY), Bagepalli; Bharat Sampathkumaran (Niskayuna, NY), Jansen; Patrick Lee (Alplaus, NY), Carl, Jr.; Ralph James (Clifton Park, NY)
General Electric Company (Schenectady, NY)
11/ 193,882
July 29, 2005
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH & DEVELOPMENT The U.S. Government has certain fights in this invention as provided for by the terms of NREL Subcontract No. NREL-ZAM-4-31235-05, Prime Contract DE-AC36-99GO10337 awarded by the Department of Energy.