Wind turbine having a direct-drive drivetrain
Abstract
A wind turbine comprising an electrical generator that includes a rotor assembly. A wind rotor that includes a wind rotor hub 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 via a bearing assembly. The wind rotor hub includes an opening 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 inside the wind rotor hub. The spindle is attached to a turret supported by a tower. Each of the spindle, turret and tower has an interior cavity that permits personnel to traverse therethrough to the cavity of the wind rotor hub. The wind turbine further includes a frictional braking system for slowing, stopping or keeping stopped the rotation of the wind rotor and rotor assembly.
- Inventors:
- Issue Date:
- Research Org.:
- Northern Power Systems, Inc., Barre, VT (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1176422
- Patent Number(s):
- 7891941
- Application Number:
- 12/246,713
- Assignee:
- Northern Power Systems, Inc. (Barre, VT)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
F - MECHANICAL ENGINEERING F03 - MACHINES OR ENGINES FOR LIQUIDS F03D - WIND MOTORS
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2008 Oct 07
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 17 WIND ENERGY; 42 ENGINEERING
Citation Formats
Bevington, Christopher M., Bywaters, Garrett L., Coleman, Clint C., Costin, Daniel P., Danforth, William L., Lynch, Jonathan A., and Rolland, Robert H. Wind turbine having a direct-drive drivetrain. United States: N. p., 2011.
Web.
Bevington, Christopher M., Bywaters, Garrett L., Coleman, Clint C., Costin, Daniel P., Danforth, William L., Lynch, Jonathan A., & Rolland, Robert H. Wind turbine having a direct-drive drivetrain. United States.
Bevington, Christopher M., Bywaters, Garrett L., Coleman, Clint C., Costin, Daniel P., Danforth, William L., Lynch, Jonathan A., and Rolland, Robert H. Tue .
"Wind turbine having a direct-drive drivetrain". United States. https://www.osti.gov/servlets/purl/1176422.
@article{osti_1176422,
title = {Wind turbine having a direct-drive drivetrain},
author = {Bevington, Christopher M. and Bywaters, Garrett L. and Coleman, Clint C. and Costin, Daniel P. and Danforth, William L. and Lynch, Jonathan A. and Rolland, Robert H.},
abstractNote = {A wind turbine comprising an electrical generator that includes a rotor assembly. A wind rotor that includes a wind rotor hub 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 via a bearing assembly. The wind rotor hub includes an opening 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 inside the wind rotor hub. The spindle is attached to a turret supported by a tower. Each of the spindle, turret and tower has an interior cavity that permits personnel to traverse therethrough to the cavity of the wind rotor hub. The wind turbine further includes a frictional braking system for slowing, stopping or keeping stopped the rotation of the wind rotor and rotor assembly.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 22 00:00:00 EST 2011},
month = {Tue Feb 22 00:00:00 EST 2011}
}
Works referenced in this record:
The Application of Flywheels in Short-term Energy Storage
book, January 1984
- Jefferson, C. M.; Larsen, N.
- Alternative Energy Systems