高电压技术2011，Vol.37Issue(9)：2126-2132,7.
特高压8分裂导线风荷载干扰效应风洞试验
Wind Tunnel Test on the Interference Effect on Wind Load of UHV 8-bundled Conductors
摘要
Abstract
In order to obtain the rational wind loads,it is necessary to study the interference effects of 8-bundled conductors of UHV transmission lines under wind effect.Taking 8-bundled conductors in a 1000kV transmission line as the prototype,we set up multi-bundled conductor models.By using high frequency multi-axis force sensor,wind loading characteristics of these models were tested in the wind tunnel under different wind fields.Drag coefficients were obtained and compared for different multi-bundled conductors.The wind actions on bundled conductors related to the number of bundles and Reynolds number were obtained and interference effect was studied by comparison of the results under different conductor configurations and wind attack angle.Test results show that there exists an obvious interference effect in large cross-section 8-bundled conductor.The wind load calculation method of the current code is conservative for 8-bundle conductor.The measured wind action on the conductor is smaller than that of the current design code.It is suggested that the rational calculation of wind load of 8-bundled conductor can consider the interference effect.关键词
特高压（UHV）/8分裂导线/刚体模型/风洞试验/干扰效应/阻力系数Key words
ultra high voltage（UHV）/8-bundled conductor/rigid model/wind tunnel test/interference effect/drag coefficient分类
信息技术与安全科学引用本文复制引用
谢强,谢超,管政..特高压8分裂导线风荷载干扰效应风洞试验[J].高电压技术,2011,37(9):2126-2132,7.基金项目
国家自然科学基金 （）
教育部霍英东教育基金会资助课题 （）
