摘要
基于气象站与测风塔的区域风能资源评估具有较大局限性,前者无法获得风机轮毂高度处的风速资料,评估精度较低,后者难以获得较长时间观测资料,对平均风速的年际变化反映不足,且评估成本较高。选取南四湖周边地区为研究对象,基于WRF构建该地区数值天气预报模式,在NCEP FNL资料的驱动下实现南四湖地区2000-2016年的小时风场模拟。提取80m高度处风场模拟信息,通过年平均风速、年平均风功率密度、年可利用小时数、年内风速分布、主风向等指标,对该地区风能资源进行了初步评估,认为该地区风能资源具备一定开发利用价值,且靠近南水北调东线泵站群等能源消耗中心,有利于风电的就地消纳,为该地区风能资源详查和开发利用提供了一定的参考。
The assessment methods of regional wind resources based on meteorological stations and anemometer towers have some limitations.The former does not have access to the wind speed data of the fan wheel,and has low evaluation precision.The latter has difficulty in getting long-time observation data,cannot provide sufficient description of the interannual variability of the average wind speed,and has high evaluation cost.In this article,we selected the surrounding area of Nansi Lake as the object of study,constructed the numerical weather forecast mode of this region based on WRF,and realized the simulation of hourly wind field around Nansi Lake from 2000 to 2016.Extracting the simulation information of wind field at 80m height,we conducted preliminary evaluation of the wind energy resources in this region by studying the annual average wind speed,annual average wind power density,annual available hours,annual wind speed distribution,and prevailing wind direction.We held that the wind energy resources in this region have certain development and utilization value.As it is close to the energy consumption centers such as the pumping stations group of the East Route of the South-to-North Water Transfer Project,the wind electricity can be used locally.This paper provides certain reference for checking and utilizing wind energy resources in this region.
作者
杨明祥
雷晓辉
蒋云钟
鹿星
杨宁
YANG Mingxiang;LEI Xiaohui;JIANG Yunzhong;LU Xing;YANG Ning(State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin,China Institute of Water Resources and Hydropower Research,Beijing 100038,China;China Eastern Route Corporation of South-to-North Water Diversion, Beijing 100088,China;Information Center of the Yellow River Conservancy Commission,Zhengzhou 450004,China)
出处
《南水北调与水利科技》
CSCD
北大核心
2018年第2期182-188,共7页
South-to-North Water Transfers and Water Science & Technology
基金
"十三五"国家重点研发计划项目(2016YFC0402201)
中国水利水电科学研究院基本科研业务费专项项目(ZJBKYKY1753)
国家自然科学基金青年基金(51709271)~~
关键词
南四湖
风能资源评估
WRF模式
数值模拟
Nansi Lake
wind resource assessment
WRF Model
numerical simulation
