Pitch-controlled variable-speed wind turbine generation

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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 ... continued below

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Muljadi, E. & Butterfield, C.P. March 1, 2000.

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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.

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  • 1999 IEEE Industry Applications Society Annual Meeting, Phoenix, AZ (US), 10/03/1999--10/07/1999

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  • Report No.: NREL/CP-500-27143
  • Grant Number: AC36-99GO10337
  • Office of Scientific & Technical Information Report Number: 753780
  • Archival Resource Key: ark:/67531/metadc712544

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • March 1, 2000

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  • Sept. 12, 2015, 6:31 a.m.

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  • March 31, 2016, 7 p.m.

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Muljadi, E. & Butterfield, C.P. Pitch-controlled variable-speed wind turbine generation, article, March 1, 2000; Golden, Colorado. (digital.library.unt.edu/ark:/67531/metadc712544/: accessed September 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.