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Modelling of Wind Turbine Loads nearby a Wind Farm

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Published under licence by IOP Publishing Ltd
, , Citation B Roscher et al 2017 J. Phys.: Conf. Ser. 854 012038 DOI 10.1088/1742-6596/854/1/012038

1742-6596/854/1/012038

Abstract

Each wind turbine experiences a variety of loads during its lifetime, especially inside a wind farm due to the wake effect between the turbines. This paper describes a possibility to observe a load spectrum while considering wake effects in a wind farm by through the turbulence intensity. The turbulence intensity is distributed along the wind rose of Alpha Ventus. For each turbulence intensity, a Weibull characteristic is calculated. The resulting wind fields are used to determine the loads through a multibody simulation of an imaginary wind turbine located at FINO-1, representing a closely placed wind turbine at the outer edge of a wind farm. These loads are analyzed and summed up. As expected, the change of the turbulence intensity due to the wake effect has an impact on the internal loading of a wind turbine inside a wind farm. Based on the assumed loading conditions, the maximum loads increased by a factor of almost 2.5.

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10.1088/1742-6596/854/1/012038