摘要
针对位于山顶地区的风电场冲击接地电阻超标严重的问题,文章提出了对该区域土壤进行水平分层反演的方法,因地制宜地布置风机接地装置中的垂直接地装置。对山区风力发电机的接地设计特点进行分析,提供了降阻装置冲击降低电阻的计算方法。在达到风机接地装置冲击接地电阻要求值的同时,获得最优的技术经济效益。
Aiming at the problem that the impulse grounding resistance of the wind farm in the mountain top area exceeds the standard seriously,this paper proposes a method of horizontal layered inversion of the soil in this area,and arranges the vertical grounding device in the wind turbine grounding device according to local conditions.Firstly,the grounding design characteristics of wind turbines in mountainous areas are analyzed,and the calculation method of impulse reduction resistance of resistance reduction device is provided.Then,the test method of soil resistivity and the principle and method of soil horizontal layered inversion are studied and analyzed.The actual layered analysis of the soil in the area where the wind farm is located is carried out to arrange the length of the vertical grounding device.While reaching the required value of the impulse grounding resistance of the wind turbine grounding device,the optimal technical and economic benefits are obtained.
作者
黄湘伟
孙仕辉
李志运
姜武
杨鑫
朱子茵
HUANG Xiangwei;SUN Shihui;LI Zhiyun;JIANG Wu;YANG Xin;Zhu Ziyin(Huaneng Hunan Clean Power Branch Company,Changsha 410015,China;Huaneng Hunan Guidong Wind Power Co.,Ltd.,Chengzhou 423503,China;School of Electrical&Information Engineering,Changsha University of Science and Technology,Changsha 410114,China)
基金
华能湖南桂东风电场风力发电机组防雷接地装置实时监测预警系统研究及应用研究(HNKJ22-HF73)。
关键词
风机接地降阻
等距四极法
土壤水平分层反演
fan grounding resistance reduction
equidistant four-pole method
soil horizontal stratification inversion
