skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method and apparatus for wind turbine air gap control

Abstract

Methods and apparatus for assembling a wind turbine generator are provided. The wind turbine generator includes a core and a plurality of stator windings circumferentially spaced about a generator longitudinal axis, a rotor rotatable about the generator longitudinal axis wherein the rotor includes a plurality of magnetic elements coupled to a radially outer periphery of the rotor such that an airgap is defined between the stator windings and the magnetic elements and the plurality of magnetic elements including a radially inner periphery having a first diameter. The wind turbine generator also includes a bearing including a first member in rotatable engagement with a radially inner second member, the first member including a radially outer periphery, a diameter of the radially outer periphery of the first member being substantially equal to the first diameter, the rotor coupled to the stator through the bearing such that a substantially uniform airgap is maintained.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176118
Patent Number(s):
7180204
Application Number:
11/031,259
Assignee:
General Electric Company (Schenectady, NY)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05B - INDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS, TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY
F - MECHANICAL ENGINEERING F03 - MACHINES OR ENGINES FOR LIQUIDS F03D - WIND MOTORS
DOE Contract Number:  
AC36-99GO10337
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY

Citation Formats

Grant, James Jonathan, Bagepalli, Bharat Sampathkumaran, Jansen, Patrick Lee, DiMascio, Paul Stephen, Gadre, Aniruddha Dattatraya, and Qu, Ronghai. Method and apparatus for wind turbine air gap control. United States: N. p., 2007. Web.
Grant, James Jonathan, Bagepalli, Bharat Sampathkumaran, Jansen, Patrick Lee, DiMascio, Paul Stephen, Gadre, Aniruddha Dattatraya, & Qu, Ronghai. Method and apparatus for wind turbine air gap control. United States.
Grant, James Jonathan, Bagepalli, Bharat Sampathkumaran, Jansen, Patrick Lee, DiMascio, Paul Stephen, Gadre, Aniruddha Dattatraya, and Qu, Ronghai. Tue . "Method and apparatus for wind turbine air gap control". United States. https://www.osti.gov/servlets/purl/1176118.
@article{osti_1176118,
title = {Method and apparatus for wind turbine air gap control},
author = {Grant, James Jonathan and Bagepalli, Bharat Sampathkumaran and Jansen, Patrick Lee and DiMascio, Paul Stephen and Gadre, Aniruddha Dattatraya and Qu, Ronghai},
abstractNote = {Methods and apparatus for assembling a wind turbine generator are provided. The wind turbine generator includes a core and a plurality of stator windings circumferentially spaced about a generator longitudinal axis, a rotor rotatable about the generator longitudinal axis wherein the rotor includes a plurality of magnetic elements coupled to a radially outer periphery of the rotor such that an airgap is defined between the stator windings and the magnetic elements and the plurality of magnetic elements including a radially inner periphery having a first diameter. The wind turbine generator also includes a bearing including a first member in rotatable engagement with a radially inner second member, the first member including a radially outer periphery, a diameter of the radially outer periphery of the first member being substantially equal to the first diameter, the rotor coupled to the stator through the bearing such that a substantially uniform airgap is maintained.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {2}
}

Patent:

Save / Share: