A positive trend in the stability of global offshore wind energy

扫码查看

原文链接

万方数据
维普

外文摘要：The recognition on the trend of wind energy stability is still extremely rare,although it is closely related to acquisition efficiency,grid connection,equipment lifetime,and costs of wind energy utilization.Using the 40-year(1979-2018)ERA-Interim data from the European Center for Medium-Range Weather Forecasts,this study presented the spatial-temporal distribution and climatic trend of the stability of global offshore wind energy as well as the abrupt phenomenon of wind energy stability in key regions over the past 40 years with the climatic analysis method and Mann-Kendall(M-K)test.The results show the following 5 points.(1)According to the coefficient of variation(Cv)of the wind power density,there are six permanent stable zones of global offshore wind energy:the southeast and northeast trade wind zones in the Indian,Pacific and Atlantic oceans,the Southern Hemisphere westerly,and a semi-permanent stable zone(North Indian Ocean).(2)There are six low-value zones for both seasonal variability index(Sv)and monthly variability index(Mv)globally,with a similar spatial distribution as that of the six permanent stable zones.Mv and Sv in the Arabian Sea are the highest in the world.(3)After Cv,Mv and Sv are comprehensively considered,the six permanent stable zones have an obvious advantage in the stability of wind energy over other sea areas,with Cv below 0.8,Mv within 1.0,and Sv within 0.7 all the year round.(4)The global stability of offshore wind energy shows a positive climatic trend for the past four decades.Cv,Mv and Sv have not changed significantly or decreased in most of the global ocean during 1979 to 2018.That is,wind energy is flat or more stable,while the monthly and seasonal variabilities tend to shrink/smooth,which is beneficial for wind energy utilization.(5)Cv in the low-latitude Pacific and Mv and Sv in both the North Indian Ocean and the low-latitude Pacific have an obvious abrupt phenomenon at the end of the 20th century.

外文关键词：

global oceanswind energystabilityspatial-temporal distributionclimatic trend

作者：

Chongwei Zheng

展开 >

作者单位：

Dalian Naval Academy,Dalian 116018,China

Marine Resources and Environment Research Group on the Maritime Silk Road,Dalian 116018,China

Shandong Provincial Key Laboratory of Ocean Engineering,Ocean University of China,Qingdao 266100,China

基金：

Open Fund Project of Shandong Provincial Key Laboratory of Ocean Engineering,Ocean University of ChinaOpen Research Fund of State Key Laboratory of Estuarine and Coastal Research

项目编号：

kloe201901SKLEC-KF201707

出版年：

2024

DOI：

10.1007/s13131-023-2187-5

海洋学报(英文版)

中国海洋学会

海洋学报(英文版)

CSTPCD

影响因子：0.323

ISSN：0253-505X

年,卷(期)：2024.43(1)

参考文献量47