Methods and apparatus for reduction of asymmetric rotor loads in wind turbines
Abstract
A method for reducing load and providing yaw alignment in a wind turbine includes measuring displacements or moments resulting from asymmetric loads on the wind turbine. These measured displacements or moments are used to determine a pitch for each rotor blade to reduce or counter asymmetric rotor loading and a favorable yaw orientation to reduce pitch activity. Yaw alignment of the wind turbine is adjusted in accordance with the favorable yaw orientation and the pitch of each rotor blade is adjusted in accordance with the determined pitch to reduce or counter asymmetric rotor loading.
- Inventors:
- Issue Date:
- Research Org.:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1175930
- Patent Number(s):
- 7118339
- Application Number:
- 10/881,244
- Assignee:
- General Electric Company (Schenectady, NY)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F03 - MACHINES OR ENGINES FOR LIQUIDS F03D - WIND MOTORS
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
- DOE Contract Number:
- AC36-83CH10093
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2004 Jun 30
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 17 WIND ENERGY
Citation Formats
Moroz, Emilian Mieczyslaw, and Pierce, Kirk Gee. Methods and apparatus for reduction of asymmetric rotor loads in wind turbines. United States: N. p., 2006.
Web.
Moroz, Emilian Mieczyslaw, & Pierce, Kirk Gee. Methods and apparatus for reduction of asymmetric rotor loads in wind turbines. United States.
Moroz, Emilian Mieczyslaw, and Pierce, Kirk Gee. Tue .
"Methods and apparatus for reduction of asymmetric rotor loads in wind turbines". United States. https://www.osti.gov/servlets/purl/1175930.
@article{osti_1175930,
title = {Methods and apparatus for reduction of asymmetric rotor loads in wind turbines},
author = {Moroz, Emilian Mieczyslaw and Pierce, Kirk Gee},
abstractNote = {A method for reducing load and providing yaw alignment in a wind turbine includes measuring displacements or moments resulting from asymmetric loads on the wind turbine. These measured displacements or moments are used to determine a pitch for each rotor blade to reduce or counter asymmetric rotor loading and a favorable yaw orientation to reduce pitch activity. Yaw alignment of the wind turbine is adjusted in accordance with the favorable yaw orientation and the pitch of each rotor blade is adjusted in accordance with the determined pitch to reduce or counter asymmetric rotor loading.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 10 00:00:00 EDT 2006},
month = {Tue Oct 10 00:00:00 EDT 2006}
}
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