摘要
随着海上风电向深远海发展,激光雷达逐渐应用于区域风资源的评估。为定量分析激光雷达测风的表征范围,基于已投运海上风电场升压站甲板部署装置,并与不同距离风电机组轮毂高度风速和风向进行比较。机组数据通过数据采集与监视控制(SCADA)系统获取。分别使用Pearson和Spearman系数对不同位置风速数据进行相关性分析,5.416 km范围内最低相关系数为0.794,表明区域内风速之间存在显著的关联性。同时随着距离增加,两个相关性指标均呈现下降趋势。实验周期内,不同位置主体风向一致。结合风电机组出厂功率曲线分析,与激光雷达位置相比,实验范围内不同位置理论累积发电量最大误差为11.256%。结果表明,激光雷达在实验范围内可为机组选址提供重要参考,同时在评估风资源时,需要增加更多的位置点来覆盖更广泛的区域,从而更准确地评估风资源的分布和变化,减少由于表征范围限制而引起的评估误差。
As offshore wind energy expands into deeper waters,LiDAR(Light Detection and Ranging)is increasingly applied for regional wind resource assessment.To quantitatively analyze the wind characterization using LiDAR,this study deployed devices on the deck of an operational offshore wind farm's substation and compared them with wind speeds and directions at the hub heights of wind turbines located at various distances.Wind turbine data were obtained through the Supervisory Control and Data Acquisition(SCADA)system.Pearson and Spearman correlation coefficients were used to analyze wind speed data at dif-ferent locations,revealing a minimum correlation coefficient of o.794 within a 5.416 km range,indicating significant correlation between wind speeds in the region.Moreover,both correlation metrics showed a decreasing trend with increasing distance.Throughout the experimental period,predominant wind directions were consistent across different locations.Analysis combined with wind turbine power curves showed thatthe maximum theoretical cumulative electricity generation error between different locations within the experimental range compared to LiDAR position was 11.256%.These results demonstrate that LiDAR provides crucial guidance for turbine siting within the experimental range,but enhancing wind resource assessments requires an increase in the number of measurement points to cover a broader area more accurately,thereby reducing assessment errors due to characterization range limitations.
作者
冯宏顺
潘晓庆
黄应慧
陈新培
曾杰平
王依敬
汪步斌
Feng Hongshun;Pan Xiaoqing;Huang Yinghui;Chen Xinpei;Zeng Jieping;Wang Yijing;Wang Bubin(Guangdong YuedianYangjiang Of fshore Wind Power Co.,Ltd.,Yangjiang 529500,Guangdong,China;School of Energy and Environment,Southeast University,Nanjing 21l189,Jiangsu,China)
出处
《应用激光》
北大核心
2025年第4期156-161,共6页
Applied Laser
基金
国家重大科学仪器设备开发专项(2017YFB0603204)
广东能源集团科技创新揭榜挂帅项目(2022)。
关键词
激光雷达
风速
风向
相关性分析
发电量
light detection and ranging
wind speed
wind direction
correlation analysis
power generation
作者简介
冯宏顺(1984-),男,本科,工程师。研究方向为控制系统和风机的可靠性分析。E-mail:465593127@qq.com;通信作者:汪步斌(1991-),男,博士,助教。研究方向为海上风电运维关键技术。E-mail:wbb@seu.edu.cn。
