Philipp Thomas
Fraunhofer Institute for Wind Energy and Energy System Technology IWES, Bremerhaven, Germany
Xin Gu
Fraunhofer Institute for Wind Energy and Energy System Technology IWES, Bremerhaven, Germany
Roland Samlaus
Fraunhofer Institute for Wind Energy and Energy System Technology IWES, Bremerhaven, Germany
Claudio Hillmann
Fraunhofer Institute for Wind Energy and Energy System Technology IWES, Bremerhaven, Germany
Urs Wihlfahrt
Fraunhofer Institute for Wind Energy and Energy System Technology IWES, Bremerhaven, Germany
Ladda ner artikel
http://dx.doi.org/10.3384/ecp14096939Ingår i: Proceedings of the 10th International Modelica Conference; March 10-12; 2014; Lund; Sweden
Linköping Electronic Conference Proceedings 96:98, s. 939-948
The OneWind® Modelica Library for couplewind turbine loads calculation developed at Fraunhofer IWES uses a structural element based on a modal reduction method to model the motion and deformation of flexible wind turbine rotor blades and tower. The degrees of freedom (DOF) are rigid body motions and modal DOF. The ModalElement model allows the simulation of coupling effects like bend-twist coupling in wind turbine rotor blades and the structural behavior is dependent on the selected eigenmodes. This paper gives an overview about the Modelica implementation of the theory of modal elements; the advantages over other methods (finite-elements); how the ModalElement model is included into the OneWind®
Modelica Library; and how it is used for load calculation.
Modal; blade; OneWind; OneModelica; load calculation; wind turbine loads; coupled wind turbine simulation
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