贵州山地风力发电机雷击电磁环境研究  

Study on Wind Turbine Lightning Electromagnetic Environment in Guizhou Mountain Area

作　　者：曾勇[1] 刘波[1] 吴安坤[1] 吴仕军[1] 张淑霞[1] 

机构地区：[1]贵州省防雷减灾中心,贵阳550002

出　　处：《电瓷避雷器》2017年第4期56-62,共7页Insulators and Surge Arresters

基　　金：贵州省气象局开放基金项目(编号:黔气科合QN[2015]14号)

摘　　要：贵州省属于我国西南部高原山地,风能资源丰富,目前全省并网型风电场建设已经达到快速增长阶段。由于贵州省特殊的地形地貌和山地气候特征,导致了雷电活动的复杂性和雷灾的易发性。风力发电机因其所处位置海拔高,极易遭受雷击。对风力发电机进行实地数据勘查,采用CDEGS软件建立风力发电机三维数值模型,利用土壤电阻率和土壤分层模型,结合雷电特征参数和风力发电机采用的防雷系统,分析风力发电机遭受雷击时其周边的电磁场变化及对人员、设备和系统的危害,同时提出了减小雷击对山区风力发电机危害的方法,为山地风电场雷击灾害评估及风力发电机防雷接地提供参考。Guizhou province belongs to the southwest plateau mountain of China, wind energy resource is abundant, wind farm construction has achieved rapidly growth stage. The special topography and mountain climate characteristics in Guizhou led to the complexity of the lightning activities and liability of the thunder disaster. Due to the Wind turbines are decorated in high altitude area, it is easy to be damag turbine, ed by the lighting strike. Based on field data and lightning protection system of wind article analysis the varying electromagnetic field and the harm to personnel or equipment surrounding the wind turbine when the lighting strike. The ground and electromagnetic CDEGS software is used for all analysis process. At the same time, the article put forward the method to reduce the harm of lightning to wind turbines and provide reference for mountain wind farm lightning disaster assessment and wind turbine lightning protection and grounding.

关 键 词：风力发电场 雷击 土壤电阻率 CDEGSR软件 跨步电压 

分 类 号：TM315[电气工程—电机]