해상 풍력 발전기의 주파수 영역에서의 거동 해석

Abstract

This study focuses the prediction of the dynamic response of a floating offshore wind turbine (FOWT) in frequency domain. In this study, the concept of multi-body systems dynamics and numerical analysis methodology are introduced, and the nonlinear equations are solved by using the Matlab/Simulink interface. As an example, the non-linear equations of motion of double pendulum are first derived, and then the equations of motion are linearized. Dynamic response analysis of the double pendulum is carried out in time domain, and frequency domain, using the non-linear equations and linearized equations, respectively, and the applicability of this methodology are verified. The result shows that the methodology can be used to evaluate the dynamic response of floating structures such as FOWT in frequency domain.onlinear equations are solved by using the Matlab/Simulink interface. As an example, the non-linear equations of motion of double pendulum are first derived, and then the equations of motion are linearized. Dynamic response analysis of the double pendulum is carried out in time domain, and frequency domain, using the non-linear equations and linearized equations, respectively, and the applicability of this methodology are verified. The result shows that the methodology can be used to evaluate the dynamic response of floating structures such as FOWT in frequency domain.