基于台风风场模型的广东沿海电网风区图优化方法  

Wind Zone Distribution Optimization Method in Guangdong Coastal Area Based on Engineering Model of Typhoon Wind Field

作　　者：吴新桥 蔡彦枫[3,4] 黄增浩 张灿亨 黄穗 WU Xinqiao;CAI Yanfeng;HUANG Zenghao;ZHANG Canheng;HUANG Sui(Digital Power Grid Research Institute,CSG,Guangzhou 510663,China;China South Power Grid Co.,Ltd.,Guangzhou 510663,China;China Energy Engineering Group Guangdong Electric Power Design Institute Co.,Ltd.,Guangzhou 510663,China;Guangdong Kenuo Surveying Engineering Co,.Ltd.,Guangzhou 510663,China;Electric Power Research Institute,CSG,Guangzhou 510663,China)

机构地区：[1]南方电网数字电网研究院,广州510663 [2]中国南方电网有限责任公司,广州510663 [3]中国能源建设集团广东省电力设计研究院有限公司,广州510663 [4]广东科诺勘测工程有限公司,广州510663 [5]南方电网科学研究院,广州510663

出　　处：《南方电网技术》2020年第11期66-73,共8页Southern Power System Technology

基　　金：国家重点研发计划(2018YFB1501104);南方电网科学研究院科技项目“沿海输电线路走廊台风实时观测与预警技术研究”(ZBKJXM20170046)。

摘　　要：为了研究台风对广东沿海地区设计风速的影响,并为今后广东沿海电网风区图优化和空间分辨率提升等建立方法,本文提出一种基于YanMeng台风风场模型和Poisson-Gumbel复合极值分布推算的沿海地区风区图优化方法。根据广东沿海23个气象台站的历年最大风速资料与设计风速推算成果,验证了台风风场模型的合理性。通过与现行广东沿海电网设计基本风速分布图的对比,分析了该方法的适用性。研究结果表明,台风是造成广东沿海地区大风的主要原因,各地最大风速的时间变化与空间分布与台风活动密切相关。基于台风风场模型的模拟值与各台站实测序列经极值Ⅰ型分布推算值基本相当,绝对偏差在0~2 m/s之间。与广东沿海电网设计基本风速空间插值成果对比,基于台风风场模型的风区分布具有一致的空间分布特征。并且随着空间分辨率提升,显示出更丰富的细节。利用台风风场模型进行沿海地区风区分布研究具有可行性。The paper aims to investigate the influence of typhoon on the design wind speed in Guangdong coastal area,and to develop technological process for improving wind zone atlas for transmission line.An optimization method based on the YanMeng typhoon wind field model and Poisson-Gumbel distribution is proposed.Based on the historical maximum wind speed data and design wind speed results of 23 coastal stations in Guangdong,the performance of the typhoon wind field model is verified.The results indicate that typhoon is the main source of maximum wind speed in coastal areas of Guangdong.The consistent temporal variation of the maximum wind speed are shown between simulation and observation data,with the mean absolute error(MAE)of 0~2 m/s.Compared with wind zone atlas of design wind speed for coastal power grid of Guangdong,similar spatial distribution characteristics are reproduced by typhoon wind field model with higher spatial resolution.It is reasonable to apply typhoon wind field model in wind zone atlas distribution simulation and optimization in coastal areas.

关 键 词：设计风速 台风 风区图 广东沿海地区 风电 

分 类 号：TM721[电气工程—电力系统及自动化]