천흘수형 해상풍력플랫폼의 형상설계에 대한 운동성능 연구

Abstract

n this paper, a shape design of floating offshore wind turbines(FOWT) with 5Mw class is presented. A design concepts of FOWT are simple to construct, cost effective and the shallow draft(50 meters) to extend the operability range compared with the spar type platform such as Hywind-OC3 which has a very deep draft of 120 meters. In previous study, the global performance of prototype FOWT was proposed & discussed by the series of experiment & numerical calculation. The numerical results using 9-node HOBEM showed the good agreement with the experimental ones, and so its performance was validated for sharp edged structure. In this paper, the numerical parametric study are carried out for design changes of FOWTs to get more improved global performance results than ones of the prototype FOWT comparable to Hywind-OC3. Through the calculation results, FOWT which has a good global performance such as motion & acceleration at nacelle response is also suggested and discussed.ed with the spar type platform such as Hywind-OC3 which has a very deep draft of 120 meters. In previous study, the global performance of prototype FOWT was proposed & discussed by the series of experiment & numerical calculation. The numerical results using 9-node HOBEM showed the good agreement with the experimental ones, and so its performance was validated for sharp edged structure. In this paper, the numerical parametric study are carried out for design changes of FOWTs to get more improved global performance results than ones of the prototype FOWT comparable to Hywind-OC3. Through the calculation results, FOWT which has a good global performance such as motion & acceleration at nacelle response is also suggested and discussed.