Assessment of long-term offshore wind energy potential in the south and southeast coasts of China based on a 55-year dataset
Assessment of long-term offshore wind energy potential in the south and southeast coasts of China based on a 55-year dataset
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DOI：
10.1016/j.energy.2021.120225
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发表时间：
2021-02
期刊：
影响因子：
9
通讯作者：
Y. Wen;B. Kamranzad;P. Lin
中科院分区：
文献类型：
--
作者：
Y. Wen;B. Kamranzad;P. Lin
利用日本55年再分析（JRA-55）资料，分析了南海风资源的时空变化特征。提出了一种确定海上风能提取合适位置的方法，并将其应用于中国南部和东南沿海。该方法考虑到各种标准，包括长期变化和波浪状况，并给予不同的权重。结果表明，吕宋海峡和台湾海峡风能潜力较高，但吕宋海峡年内波动较大，在400 ~ 2500 W/m2之间，不适合提供稳定的功率输出。长期变化的研究表明，南海大部分海域在1971-1980年期间经历了显著的减少，而50年间风能的长期变化趋势基本上是平稳的。在选定的地点的调查表明，最适合的位置，风力发电的开发是福建泉州近岸，附近的风力发电场正在建设中，已经。建议的未来离岸风力发电发展是沿着香港海岸，每台SWT-7.0-154型风力涡轮机的发电潜力为35.36兆瓦时/年。
In this study, based on the Japanese 55-year Reanalysis (JRA-55) dataset, the spatio-temporal variations of wind resources were analyzed in the South China Sea. An approach to determine suitable locations of offshore wind energy extraction was proposed and applied to the south and southeast coasts of China. The approach took into account various criteria, including long-term change and wave condition, with different weights. The results showed that Luzon Strait and Taiwan Strait have higher wind energy potential than other areas, while the intra-annual fluctuation in Luzon Strait is significantly high, ranging from 400 to 2500 W/m2and thus it is not suitable to provide stable power output. The investigation of the long-term change showed that most of the South China Sea experienced a remarkable decrease in the period of 1971–1980, while the overall long-term wind energy trend during five decades was mostly even. The investigation in selected sites indicated that the most suitable location for wind power exploitation is the nearshore of Quanzhou, Fujian, near which there are wind farms under construction, already. The suggested future offshore wind power development is along the coasts of Hong Kong, with the potential of generating 35.36 MWh/y per wind turbine of type SWT-7.0-154.