부유식해상풍력 용 동해가스전 환경조건
Environmental Conditions of Donghae Gas Field for FOWT
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This paper aims to estimate the design values of environmental conditions such as wind, waves, and sea current in the Donghae gas field for the floating offshore wind turbine (FOWT) design specified in the IEC 61400 standard. In this paper, 39-year National Oceanic and Atmospheric Administration (NOAA) long-term hindcast data and 3-year Korea Meteorological Administration (KMA) buoy measured data were used for wind and waves, while 22-year HYbrid Coordinate Ocean Model (HYCOM) data were used for sea currents. The generalized Pareto distribution (GPD), 3-parameter Weibull distribution (W3P) and inverse first order reliability method (IFORM) recommended by DNVGL were used for extreme value analyses. In particular, for significant wave heights of severe sea state (SSS) required in the design load case (DLC) 1.6, it was found that the fitting method recommended by the International Electrotechnical Commission (IEC) was not suitable for these data sets. Therefore, this paper proposes to use a different method to obtain appropriate values. The environmental conditions presented in this study are expected to be useful information for FOWT design and substations to be installed and operated in the Donghae gas field in the future.
Abstract
This paper aims to estimate the design values of environmental conditions such as wind, waves, and sea current in the Donghae gas field for the floating offshore wind turbine (FOWT) design specified in the IEC 61400 standard. In this paper, 39-year National Oceanic and Atmospheric Administration (NOAA) long-term hindcast data and 3-year Korea Meteorological Administration (KMA) buoy measured data were used for wind and waves, while 22-year HYbrid Coordinate Ocean Model (HYCOM) data were used for sea currents. The generalized Pareto distribution (GPD), 3-parameter Weibull distribution (W3P) and inverse first order reliability method (IFORM) recommended by DNVGL were used for extreme value analyses. In particular, for significant wave heights of severe sea state (SSS) required in the design load case (DLC) 1.6, it was found that the fitting method recommended by the International Electrotechnical Commission (IEC) was not suitable for these data sets. Therefore, this paper proposes to use a different method to obtain appropriate values. The environmental conditions presented in this study are expected to be useful information for FOWT design and substations to be installed and operated in the Donghae gas field in the future.
참고문헌 (14)
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