Methods and apparatus for reduction of asymmetric rotor loads in wind turbines
Patent
·
OSTI ID:1175930
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.
- Research Organization:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC36-83CH10093
- Assignee:
- General Electric Company (Schenectady, NY)
- Patent Number(s):
- 7,118,339
- Application Number:
- 10/881,244
- OSTI ID:
- 1175930
- Resource Relation:
- Patent File Date: 2004 Jun 30
- Country of Publication:
- United States
- Language:
- English
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OSTI ID:1175930