Analysis of Environmental Conditions for the Conceptual Design of a 200 MW Floating Offshore Wind Farm in the East Sea, Korea

Hyunkyoung Shin, Youngjae Yu, T. Pham, Hyeonjeong Ahn, Byoungcheon Seo, Junbae Kim
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引用次数: 3

Abstract

Due to global climate change, concern regarding the environment is greater than ever. Also, the energy industry is constantly developing and investing in new and renewable energy to reduce carbon emissions. Korea is planning to increase the proportion of renewable energy generation to 20% by 2030, in accordance with the 3020 renewable energy policy. This will involve 16.5 GW (34%) from wind energy, with a capacity from offshore wind energy of approximately 13 GW. Considering domestic technological wind resource potential (33.2 GW), it seems to be a sufficient target amount. However, in order to start the wind power generation business, the installation area must be analyzed for environmental information, for the evaluation of the wind resource and the early-stage concept design. Because it is difficult to conduct long-term measurements of the entire sea area, the environmental conditions are generally estimated from short-term measurement data and long-term reanalysis data. In this study, the environmental conditions of the East Sea of Korea were selected, and a comparative analysis was performed on the meteorological agency’s oceanic meteorology buoy data, ERA-5 reanalysis data obtained from ECMWF, and NASA’s MERRA-2 data. The extreme sea states of 50 years and 100 years were analyzed by extreme statistical analysis. Finally, environmental conditions required for the basic design of wind turbines were selected following IEC and DNV standards.
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韩国东海200mw海上浮式风电场概念设计环境条件分析
由于全球气候变化,人们对环境的关注比以往任何时候都要大。此外,能源行业正在不断开发和投资新能源和可再生能源,以减少碳排放。韩国计划根据“3020可再生能源政策”,到2030年将可再生能源发电比重提高到20%。这将涉及16.5吉瓦(34%)的风能,其中海上风能容量约为13吉瓦。考虑到国内技术风能资源潜力(33.2 GW),这似乎是一个足够的目标数量。然而,为了启动风力发电业务,必须对安装区域进行环境信息分析,进行风资源评估和早期概念设计。由于很难对整个海域进行长期测量,因此一般通过短期测量数据和长期再分析数据来估计环境状况。本研究选取韩国东海的环境条件,对气象局的海洋气象浮标数据、ECMWF的ERA-5再分析数据和NASA的MERRA-2数据进行对比分析。用极值统计方法分析了50年和100年的极端海况。最后,根据IEC和DNV标准选择风机基本设计所需的环境条件。
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