Experiences with object-oriented and equation based modeling of a floating support structure for wind turbines in Modelica | Zendy

Matthias Brommundt | Zendy; Michael Muskulus | Zendy; Mareike Strach | Zendy; Michael Strobel | Zendy; Fabian Vorpahl | Zendy

Open Access

Experiences with object-oriented and equation based modeling of a floating support structure for wind turbines in Modelica

Author(s) -

Matthias Brommundt,

Michael Muskulus,

Mareike Strach,

Michael Strobel,

Fabian Vorpahl

Publication year - 2012

Publication title -

proceedings title: proceedings of the 2012 winter simulation conference (wsc)

Language(s) - English

Resource type - Conference proceedings

ISBN - 978-1-4673-4781-5

DOI - 10.1109/wsc.2012.6465105

Subject(s) - modelica , solver , substructure , computer science , object oriented programming , aerodynamics , visual modeling , code generation , modeling language , nonlinear system , turbine , wind power , programming language , computational science , unified modeling language , engineering , mechanical engineering , aerospace engineering , software , physics , computer security , structural engineering , quantum mechanics , key (lock) , electrical engineering

A floating substructure for wind turbines is modeled using the object-oriented modeling language Modelica in a coupled simulation environment. The equation-based modeling facilitates the implementation for engineers due to declarative model descriptions and acausal formulations. Predefined components from the Modelica Standard Library are used to represent several parts of a wind turbine. Especially the MultiBody library combined with the graphical editing feature is a powerful method to model the rigid body motions of a floating structure as shown herein. This paper illustrates how the resulting nonlinear differential-algebraic equation system can be implemented and solved in a convenient way. Different solvers can be easily tested to detect the solver with the best performance, without changing the code of the model. The developed model of the floating substructure has been verified with results of the Offshore Code Comparison Collaboration (OC3)-project and the resul ts show good agreement

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