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Title: Pitch-controlled variable-speed wind turbine generation

Abstract

Wind energy is a viable option to complement other types of pollution-free generation. In the early development of wind energy, the majority of wind turbines were operated at constant speed. Recently, the number of variable-speed wind turbines installed in wind farms has increased and more wind turbine manufacturers are making variable-speed wind turbines. This paper covers the operation of variable-speed wind turbines with pitch control. The system the authors considered is controlled to generate maximum energy while minimizing loads. The maximization of energy was only carried out on a static basis and only drive train loads were considered as a constraint. In medium wind speeds, the generator and power converter control the wind turbine to capture maximum energy from the wind. In the high wind speed region, the wind turbine is controlled to maintain the aerodynamic power produced by the wind turbine. Two methods to adjust the aerodynamic power were investigated: pitch control and generator load control, both of which are employed to control the operation of the wind turbine. The analysis and simulation shows that the wind turbine can be operated at its optimum energy capture while minimizing the load on the wind turbine for a wide range ofmore » wind speeds.« less

Authors:
;
Publication Date:
Research Org.:
National Renewable Energy Lab., Golden, CO (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
753780
Report Number(s):
NREL/CP-500-27143
TRN: AH200011%%56
DOE Contract Number:
AC36-99GO10337
Resource Type:
Conference
Resource Relation:
Conference: 1999 IEEE Industry Applications Society Annual Meeting, Phoenix, AZ (US), 10/03/1999--10/07/1999; Other Information: PBD: 1 Mar 2000
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY; WIND TURBINES; CONTROL; OPERATION; ELECTRIC GENERATORS; TURBINE BLADES; DESIGN; AERODYNAMICS; CONTROL THEORY; WIND LOADS; VARIABLE-SPEED WIND TURBINES; PITCH CONTROL; WIND ENERGY; AERODYNAMIC POWER; WIND SPEEDS

Citation Formats

Muljadi, E., and Butterfield, C.P. Pitch-controlled variable-speed wind turbine generation. United States: N. p., 2000. Web.
Muljadi, E., & Butterfield, C.P. Pitch-controlled variable-speed wind turbine generation. United States.
Muljadi, E., and Butterfield, C.P. Wed . "Pitch-controlled variable-speed wind turbine generation". United States. doi:. https://www.osti.gov/servlets/purl/753780.
@article{osti_753780,
title = {Pitch-controlled variable-speed wind turbine generation},
author = {Muljadi, E. and Butterfield, C.P.},
abstractNote = {Wind energy is a viable option to complement other types of pollution-free generation. In the early development of wind energy, the majority of wind turbines were operated at constant speed. Recently, the number of variable-speed wind turbines installed in wind farms has increased and more wind turbine manufacturers are making variable-speed wind turbines. This paper covers the operation of variable-speed wind turbines with pitch control. The system the authors considered is controlled to generate maximum energy while minimizing loads. The maximization of energy was only carried out on a static basis and only drive train loads were considered as a constraint. In medium wind speeds, the generator and power converter control the wind turbine to capture maximum energy from the wind. In the high wind speed region, the wind turbine is controlled to maintain the aerodynamic power produced by the wind turbine. Two methods to adjust the aerodynamic power were investigated: pitch control and generator load control, both of which are employed to control the operation of the wind turbine. The analysis and simulation shows that the wind turbine can be operated at its optimum energy capture while minimizing the load on the wind turbine for a wide range of wind speeds.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2000},
month = {Wed Mar 01 00:00:00 EST 2000}
}

Conference:
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