南方科技大学知识苑(SUSTech KC): Spatiotemporal variation of power law exponent on the use of wind energy

题名	Spatiotemporal variation of power law exponent on the use of wind energy
作者	Yang，Xinrong 1; Jiang，Xin 1 ; Liang，Shijing1 ; Qin，Yingzuo 1; Ye，Fan1,2 ; Ye，Bin1 ; Xu，Jiayu 1 ; He，Xinyue1,4 ; Wu，Jie1 ; Dong，Tianyun 1,5; Cai，Xitian 3; Xu，Rongrong1 ; Zeng，Zhenzhong1
通讯作者	Cai，Xitian
发表日期	2024-02-15
DOI	10.1016/j.apenergy.2023.122441
发表期刊	Applied Energy 影响因子和分区
ISSN	0306-2619
卷号	356
摘要	The power law, a common method in wind energy assessments, often assumes a global power law exponent (α) of 1/7, potentially leading to inaccuracies in estimating wind conditions and energy potential. This study uses high-frequency measurements from eight wind towers to assess the power law's reliability and demonstrates its general applicability, except in complex topography. The α value is found to differ significantly from 1/7 in validation sites, yet it can be reliably used in ERA5 data based on regional verification. To evaluate the global spatiotemporal variation of α, we analyze the hourly α from 1980 to 2022 using ERA5 wind speed data at 10 m and 100 m. Our findings reveal varying α value with time and geography, with particular disparities between land and ocean. Additionally, we observe changes related to diurnal cycles, seasons, and latitudes. This analysis of α value carries significant implications for a global-scale wind energy resource assessment, site selection, and turbine design.
关键词	Multiple heights Power law exponent Spatiotemporal variation Wind energy
相关链接	[Scopus记录]
收录类别	SCI ; EI
语种	英语
学校署名	第一
ESI学科分类	ENGINEERING
Scopus记录号	2-s2.0-85179465785
来源库	Scopus
引用统计	被引频次[WOS]：1
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/629278
专题	工学院_环境科学与工程学院
作者单位	1.School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,China 2.MingYang Smart Energy,Zhongshan,China 3.School of Civil Engineering,Sun Yat-sen University,Guangzhou,China 4.School of Earth and Environment,University of Leeds,Leeds,United Kingdom 5.Ningbo Institute of Digital Twin,Eastern Institute of Technology,Ningbo,China
第一作者单位	环境科学与工程学院
第一作者的第一单位	环境科学与工程学院
推荐引用方式 GB/T 7714	Yang，Xinrong,Jiang，Xin,Liang，Shijing,et al. Spatiotemporal variation of power law exponent on the use of wind energy[J]. Applied Energy,2024,356.
APA	Yang，Xinrong.,Jiang，Xin.,Liang，Shijing.,Qin，Yingzuo.,Ye，Fan.,...&Zeng，Zhenzhong.(2024).Spatiotemporal variation of power law exponent on the use of wind energy.Applied Energy,356.
MLA	Yang，Xinrong,et al."Spatiotemporal variation of power law exponent on the use of wind energy".Applied Energy 356(2024).