摘要
风资源评估是风电场建设、运行的重要环节,风力机叶片覆冰会导致叶片载荷增加,发电功率降低,影响风资源的正确评估,造成计算值与实际发电量误差大。以南方某山地为对象,研究结冰影响的风资源评估方法,开展地形模拟以及风场特性分析,得出微观选址结果并分析结冰与无结冰条件下的经济效益。运用WindSim软件评测某地的风资源情况,结果显示该山脉海拔在570 m左右,最高处分别在几个区域内出现,走势相对缓和,且坡度不大,速度分量、湍流动能、湍流损耗率和湍流频率的点值趋于稳定,残差值收敛于0,说明风流稳定,适合建立风电场,风能资源相对较好,具有一定的开发价值。本文的研究可为该地风电场的建设提供一定的参考价值。
Wind resource assessment is an important link in the construction and operation of the wind farm.The icing of wind turbine blades will increase the blade load and reduce the power generation,which will affect the correct assessment of wind resources,resulting in large errors between calculated values and actual power generation.This project takes a mountain in the south as an object,studies the wind resource assessment method considering the impact of icing,carries out terrain simulation and analysis of wind field characteristics,derives microsite selection results,and makes the economic benefit analysis under the conditions of icing and non-icing.Using WindSim soft to evaluate the wind resource situation in the area,the results show that the height of the mountain range is about 570 m,the highest places appear in several areas,the trend is relatively mild,the slope is not large,and the speed component,the point values of turbulence energy,turbulence loss rate,and turbulence frequency tend to stabilize,and the residual value converges to zero,indicating that the wind flow is stable and suitable for the establishment of a wind farm.The wind energy resources are relatively good and have a certain development value.
作者
陈标
何建军
舒忠虎
罗金
杨凯钧
姜楠楠
CHEN Biao;HE Jianjun;SHU Zhonghu;LUO Jin;YANG Kaijun;JIANG Nannan(Longyuan Jiangyong Wind Power Generation Co.,Ltd.of CHN Energy Group,Changsha 410000,China;School of Energy and Power Engineering,Changsha University of Science and Technology,Changsha 410114,China)
出处
《湖南电力》
2021年第5期42-47,52,共7页
Hunan Electric Power
基金
国家能源集团公司科技创新项目(HJLFD-QTHT-2019-09)。
