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Title: Method and apparatus for reducing rotor blade deflections, loads, and/or peak rotational speed

Abstract

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.

Inventors:
;
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175943
Patent Number(s):
7,121,795
Application Number:
10/880,714
Assignee:
General Electric Company (Schenectady, NY)
DOE Contract Number:  
AC36-83CH10093
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Moroz, Emilian Mieczyslaw, and Pierce, Kirk Gee. Method and apparatus for reducing rotor blade deflections, loads, and/or peak rotational speed. United States: N. p., 2006. Web.
Moroz, Emilian Mieczyslaw, & Pierce, Kirk Gee. Method and apparatus for reducing rotor blade deflections, loads, and/or peak rotational speed. United States.
Moroz, Emilian Mieczyslaw, and Pierce, Kirk Gee. 2006. "Method and apparatus for reducing rotor blade deflections, loads, and/or peak rotational speed". United States. https://www.osti.gov/servlets/purl/1175943.
@article{osti_1175943,
title = {Method and apparatus for reducing rotor blade deflections, loads, and/or peak rotational speed},
author = {Moroz, Emilian Mieczyslaw and Pierce, Kirk Gee},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/1175943}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {10}
}