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Modeling and Vibration Control of a Coupled FloatingWind Turbine System
Shuang Zhang,Hui Qin,Xiuyu He,Wei He 제어로봇시스템학회 2015 제어로봇시스템학회 국제학술대회 논문집 Vol.2015 No.10
This paper presents the dynamic modeling and vibration control design of a floating wind turbine system. Two flexible mooring lines attached to a flexible wind turbine tower (taut-moored floating spar) are used to represent the dynamics of system. The wind turbine tower is modeled as an Euler-Bernoulli beam, and the mooring lines are modeled as two strings. The control laws are designed to suppress vibrations of both wind turbine tower and the mooring lines. Based on the construction of a physically motivated Lyapunov function, the bounded stability is proved with the proposed control. Numerical examples illustrate the performance of the control system.