Method and apparatus for reducing rotor blade deflections, loads, and/or peak rotational speed
Patent
·
OSTI ID:1175943
A method for reducing at least one of loads, deflections of rotor blades, or peak rotational speed of a wind turbine includes storing recent historical pitch related data, wind related data, or both. The stored recent historical data is analyzed to determine at least one of whether rapid pitching is occurring or whether wind speed decreases are occurring. A minimum pitch, a pitch rate limit, or both are imposed on pitch angle controls of the rotor blades conditioned upon results of the analysis.
- 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):
- 7,121,795
- Application Number:
- 10/880,714
- OSTI ID:
- 1175943
- Resource Relation:
- Patent File Date: 2004 Jun 30
- Country of Publication:
- United States
- Language:
- English
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