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Title: Direct drive wind turbine

Abstract

A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.

Inventors:
; ; ; ;
Publication Date:
Research Org.:
Northern Power Systems, Inc., Waitsfield, VT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176128
Patent Number(s):
7,183,665
Application Number:
11/276,912
Assignee:
Northern Power Systems, Inc. (Waitsfield, VT) GFO
DOE Contract Number:
FC36-03GO13131
Resource Type:
Patent
Resource Relation:
Patent File Date: 2006 Mar 17
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY; 42 ENGINEERING

Citation Formats

Bywaters, Garrett, Danforth, William, Bevington, Christopher, Jesse, Stowell, and Costin, Daniel. Direct drive wind turbine. United States: N. p., 2007. Web.
Bywaters, Garrett, Danforth, William, Bevington, Christopher, Jesse, Stowell, & Costin, Daniel. Direct drive wind turbine. United States.
Bywaters, Garrett, Danforth, William, Bevington, Christopher, Jesse, Stowell, and Costin, Daniel. Tue . "Direct drive wind turbine". United States. doi:. https://www.osti.gov/servlets/purl/1176128.
@article{osti_1176128,
title = {Direct drive wind turbine},
author = {Bywaters, Garrett and Danforth, William and Bevington, Christopher and Jesse, Stowell and Costin, Daniel},
abstractNote = {A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 27 00:00:00 EST 2007},
month = {Tue Feb 27 00:00:00 EST 2007}
}

Patent:

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  • A wind turbine is provided that passively cools an electrical generator. The wind turbine includes a plurality of fins arranged peripherally around a generator house. Each of the fins being oriented at an angle greater than zero degrees to allow parallel flow of air over the fin. The fin is further tapered to allow a constant portion of the fin to extend beyond the air stream boundary layer. Turbulence initiators on the nose cone further enhance heat transfer at the fins.
  • A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.
  • A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.
  • A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.
  • A wind turbine (100) comprising an electrical generator (108) that includes a rotor assembly (112). A wind rotor (104) that includes a wind rotor hub (124) is directly coupled to the rotor assembly via a simplified connection. The wind rotor and generator rotor assembly are rotatably mounted on a central spindle (160) via a bearing assembly (180). The wind rotor hub includes an opening (244) having a diameter larger than the outside diameter of the central spindle adjacent the bearing assembly so as to allow access to the bearing assembly from a cavity (380) inside the wind rotor hub. Themore » spindle is attached to a turret (140) supported by a tower (136). Each of the spindle, turret and tower has an interior cavity (172, 176, 368) that permits personnel to traverse therethrough to the cavity of the wind rotor hub. The wind turbine further includes a frictional braking system (276) for slowing, stopping or keeping stopped the rotation of the wind rotor and rotor assembly.« less