Coupled aero-hydro-servo-elastic methods for floating wind turbines

RENEWABLE ENERGY

卷:130

Article

Chen, Jiahao^1,3  Hu, Zhiqiang²  Liu, Geliang¹  Wan, Decheng^1,3 

[1] Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Shanghai, Peoples R China

[2] Newcastle Univ, Sch Engn, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

[3] Shanghai Jiao Tong Univ, Collaborat Innovat Ctr Adv Ship & Deep Sea Explor, Shanghai, Peoples R China

关键词: Floating offshore wind turbines;    DARwind;    Kane's dynamical equations;    Aerodynamics;    Hydrodynamics;    Code-to-experiment validation;   

DOI  :  10.1016/j.renene.2018.06.060

来源: Elsevier

【 摘 要 】

To meet the demand of the development of floating wind turbines, coupled aero-hydro-servo-elastic methods were developed and then were programmed as an integrated code DARwind (short for Dynamic Analysis for Response of Wind Turbines) for simulating floating wind turbines. This paper first presents the theoretical background, including Kane's dynamical equations in combination with the Cardan angles method, the hybrid coordinate dynamic analysis method, and the adjacent array approach for kinematics and kinetics. The blade element/momentum method with aerodynamic corrections was used for aerodynamic simulation. Potential-flow theory, the second-order wave forces and the Morison formula with the strip theory were used for hydrodynamics, and a quasi-static mooring modelling approach was developed for the catenary mooring system. A generator-torque controller and a full-span rotor-collective blade-pitch controller were adopted for control strategies. The code was then verified by a series of code-to-experiment comparisons, including the mooring system, the structural elasticity, the aerodynamic performance, the hydrodynamic performance and the control strategy. The comparisons demonstrated that the coupled aero-hydro-servo-elastic methods have a satisfactory ability to perform fully coupled simulations for floating wind turbines. (C) 2018 Elsevier Ltd. All rights reserved.

【 授权许可】

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