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Blade-Pitch Control for Wind Turbine Load Reductions pp 101–124Cite as

Estimation and Control Design for Tower Motions

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Abstract

Wind turbine blade pitch adjustment can be used to alleviate excessive tower loads caused by unsteady aerodynamic loads. At present, tower damping control strategies assume sensory input from an additional tower-top accelerometer, leading to extra costs associated with installation. The main result of this chapter is to show that this sensor is redundant in the sense that tower motion can be estimated solely from existing blade load sensors. This is possible owing to the dynamic coupling between the blades and towers, but is challenging since the blade loads occur in a rotating frame of reference with respect to the fixed tower, resulting in a time-varying system.

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Authors and Affiliations

  1. Department of Wind Energy, Technical University of Denmark, Roskilde, Denmark

    Wai Hou (Alan) Lio

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  1. Wai Hou (Alan) Lio
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Correspondence to Wai Hou (Alan) Lio .

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Lio, W. (2018). Estimation and Control Design for Tower Motions. In: Blade-Pitch Control for Wind Turbine Load Reductions. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-319-75532-8_5

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  • DOI: https://doi.org/10.1007/978-3-319-75532-8_5

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-75531-1

  • Online ISBN: 978-3-319-75532-8

  • eBook Packages: EnergyEnergy (R0)

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