500kV架空输电线路风偏数值模拟研究
|
摘要
采用数值模拟方法来研究500kV超高压输电线路在随机风荷载作用下的风偏问题。具体步骤是:采用考虑随高度变化的Kaimal风速谱和Davenport相干函数,并结合谐波合成法数值模拟线路风场;在ANSYS有限元软件中建立不同档距的输电塔线体系的有限元模型,用ANSYS有限元软件分别对模型进行时程分析,分析结果显示档距对悬垂绝缘子串的风偏角有一定影响;将分析结果同现行设计规程中风偏角计算公式所得结果作比较,提出为精确确定悬垂绝缘子串的风偏角问题,在计算作用于导线和绝缘子串上风荷载时,引入风动态特性的风荷载调整系数,并给出输电线路不同档距时计算悬垂绝缘子串风荷载调整系数的不同取值。
The windage yaw of 500kV ultra-high voltage(UHV) overhead transmission lines under the action of stochastic wind load is numerically investigated.The concrete steps are as follows: adopting Kaimal spectrum which reflects the change of wind speed with height above ground,and the Davenportcoherence function;time history analysis is performed on the models by using ANSYS finite element model,and the result suggests that the span has certain effect on angle of wind deflection of suspension insulator string.The analysis result is compared with that by design formulas of current design discipline,and it is proposed that wind load adjustment factor with dynamic characteristics should be introduced when wind load on conductor lines and insulator strings are calculated to precisely determine angle of wind deflection of suspension insulator string;Furthermore,different values for calculating wind load adjustment factor of suspension insulator string under the circumstance of different spans of transmission lines are offered.
The windage yaw of 500kV ultra-high voltage(UHV) overhead transmission lines under the action of stochastic wind load is numerically investigated.The concrete steps are as follows: adopting Kaimal spectrum which reflects the change of wind speed with height above ground,and the Davenportcoherence function;time history analysis is performed on the models by using ANSYS finite element model,and the result suggests that the span has certain effect on angle of wind deflection of suspension insulator string.The analysis result is compared with that by design formulas of current design discipline,and it is proposed that wind load adjustment factor with dynamic characteristics should be introduced when wind load on conductor lines and insulator strings are calculated to precisely determine angle of wind deflection of suspension insulator string;Furthermore,different values for calculating wind load adjustment factor of suspension insulator string under the circumstance of different spans of transmission lines are offered.
引文
[1]张禹芳.我国500kV输电线路风偏闪络分析[J].电网技术,2005,29(7):66-67,73.ZHANG Yu-fang.Analysis on Flashover between Tower andConducting Wires in Domestic500kV Transmission Lines Causedby Windage Yaw[J].Power System Technology,2005,29(7):65-67,73.
[2]邵瑰玮,龚桂英,胡毅.国内外输电线路风偏设计参数比较与分析[J].高电压技术,2009,34(12):3106-3110.SHAO Gui-wei,GONG Gui-ying,HU Yi.Analysis on theParameters of Windage Yaw Design in the World[J].HighVoltage Engineering,2009,34(12):3106-3110.
[3]王声学,吴广宁,范建斌,等.500kV输电线路悬垂绝缘子串风偏闪络的研究[J].电网技术,2008,32(9):65-69.WANG Sheng-xue,WU Guang-ning,FAN Jian-bin,et al.Study on Flashover of Suspention Insulator String Caused byWindage Yaw in500kV Transmission Lines[J].Power SystemTechnology,2008,32(9):65-69.
[4]林雪松.悬垂绝缘子串风偏角计算公式中风荷载调整系数的研究[D].重庆:重庆大学,2008.LIN Xue-song.Study on Adjustment Coefficients of WindLoads in Windage Yaw Determination of Suspention InsulatorString[D].Chongqing:Chongqing University,2008.
[5]陈浩,郝福忠,史心清,等.高压架空送电线路防风偏技术分析及应用[J].中国电力,2006,39(5):45-48.CHEN Hao,HAO Fu-zhong,SHI Xin-qing,et al.TechnicalAnalysis and Application of Defending the Windage Yaw of500kV Overhead Transmission Lines[J].Electric Power,2006,39(5):45-48.
[6]龙立宏,胡毅.输电线路风偏放电的影响因素研究[J].高电压技术,2006,32(4):7-9.LONG Li-hong,HU Yi.Study on Windage Yaw Discharge ofTransmission line[J].High Voltage Engineering,2006,32(4):7-9.
[7]林雪松,严波,刘仲全,等.220kV高压输电线路风偏有限元模拟研究[J].应用力学学报,2009,26(1):120-124.LIN Xue-song,YAN Bo,LIU Zhong-quan,et al.TheWindage Yaw Finite Element Simulation of220kV OverheadTransmis-sion Lines[J].Chinese Journal of Applied Mecha-nics,2009,26(1):120-124.
[8]刘小会,严波,林雪松,等.500kV超高压输电线路风偏数值模拟研究[J].工程力学,2009,26(1):244-249.LIU Xiao-hui,YAN Bo,LIN Xue-song,et al.NumericalSimulation of Windage Yaw of500kV UHV TransmissionLines[J].Engineering Mechanics,2009,26(1):244-249.
[9]孔德怡,李黎,龙晓鸿,等.悬垂绝缘子串动态风偏角有限元分析[J].电力建设,2008,29(9):5-9.KONG De-yi,LI Li,LONG Xiao-hong,et al.Finite ElementAnalysis of Dynamic Windage Angle of Suspention InsulatorStrings[J].Electric Power Construction,2008,29(9):5-9.
[10]张希黔,葛勇,严春风,等.脉动风场模拟技术的研究与进展[J].地震工程与工程振动,2008,28(6):206-211.ZHANG Xi-qian,GE Yong,YAN Chun-feng,et al.Advances in Research of Simulation Technology of FluctuaionWind Loading[J].Journal of Earthquake Engineering andEngineering Vibration,2008,28(6):206-211.
[11]白海峰,李宏男.大跨越输电塔线体系随机脉动风场模拟研究[J].工程力学,2007,24(7):146-151.BAI Hai-feng,LI Hong-nan.Simulation Stduy of StochasticFluctuating Wind Field on Large Spane Electricity Transmis-sion Tower-line System[J].Engineering Mechanics,2007,24(7):146-151.
[12]贺德馨.风工程与工业空气动力学[M].北京:国防工业出版社,2006.HE De-xin.Wind Engineering and Industrial Aerodynamics[M].Beijing:Defense Industry Press,2006.
[13]SHIINOZUKA M,JAN C M.Digital Simulation of RandomProcesses and Its Applications[J].Journal of Sound andVibration,1972,25(1):111-128.
[14]杨帆,杜文风,王永峰,等.输电塔结构脉动风模拟的谐波叠加法[J].中国科技信息,2008(5):274-275.YANG Fan,DU Wen-feng,WANG Yong-feng,et al.TheWave Superposition Method of the Fluctuating Wind Simula-tion of Transmission Towers[J].China Science and Techno-logy Information,2008(5):274-275.
[15]石辛民,郝整清.基于MATLAB的实用数值计算[M].北京:清华大学出版社,2006.SHI Xin-min,HAO Zheng-qing.A Practical NumericalMethod Based on MATLAB[M].Beijing:TsinghuaUniversity Press,2006.
[16]YAN Bo,LIU Xiao-hui,LIU Bao-an.Dynamic ResponseAnalysis of Windage Yaw of Overhead Transmission Lines[J].WSEAS Transactions on Applied Theoretical Mecha-nics,2006,1(1):90-97.
[17]国家电力公司东北电力设计院.电力工程高压送电线路设计手册[M].2版.北京:中国电力出版社,2003:103-327.Northeast Electric Power Design Institute of National ElectricPower Corporation.Design Manual of High Voltage Trans-mission Lines for Electric Engineering[M].2nd Ed.Beijing:China Electric Power Press,2003:103-337.
[18]谢强,丁兆东,赵桂峰,等.不同横隔面配置方式的输电塔抗风动力响应分析[J].高电压技术,2009,35(3):683-687.XIE Qiang,DING Zhao-dong,ZHAO Gui-feng,et al.WindResistant Analysis of Power Transmission Tower with Diffe-rent Diaphragm Arrangements[J].High Voltage Enginee-ring,2009,35(3):683-687.
[19]刘小会.架空高压输电线路风偏数值模拟研究[D].重庆:重庆大学,2007.LIU Xiao-hui.Numerical Simulation of Windage Yaw ofOverhead Transmission Lines[D].Chongqing:ChongqingUniversity,2007.
[20]张相庭.结构风工程[M].北京:中国建筑工业出版社,2006.ZHANG Xiang-ting.Structures and Wind Engineering[M].Beijing:China Construction Industry Press,2006.
[2]邵瑰玮,龚桂英,胡毅.国内外输电线路风偏设计参数比较与分析[J].高电压技术,2009,34(12):3106-3110.SHAO Gui-wei,GONG Gui-ying,HU Yi.Analysis on theParameters of Windage Yaw Design in the World[J].HighVoltage Engineering,2009,34(12):3106-3110.
[3]王声学,吴广宁,范建斌,等.500kV输电线路悬垂绝缘子串风偏闪络的研究[J].电网技术,2008,32(9):65-69.WANG Sheng-xue,WU Guang-ning,FAN Jian-bin,et al.Study on Flashover of Suspention Insulator String Caused byWindage Yaw in500kV Transmission Lines[J].Power SystemTechnology,2008,32(9):65-69.
[4]林雪松.悬垂绝缘子串风偏角计算公式中风荷载调整系数的研究[D].重庆:重庆大学,2008.LIN Xue-song.Study on Adjustment Coefficients of WindLoads in Windage Yaw Determination of Suspention InsulatorString[D].Chongqing:Chongqing University,2008.
[5]陈浩,郝福忠,史心清,等.高压架空送电线路防风偏技术分析及应用[J].中国电力,2006,39(5):45-48.CHEN Hao,HAO Fu-zhong,SHI Xin-qing,et al.TechnicalAnalysis and Application of Defending the Windage Yaw of500kV Overhead Transmission Lines[J].Electric Power,2006,39(5):45-48.
[6]龙立宏,胡毅.输电线路风偏放电的影响因素研究[J].高电压技术,2006,32(4):7-9.LONG Li-hong,HU Yi.Study on Windage Yaw Discharge ofTransmission line[J].High Voltage Engineering,2006,32(4):7-9.
[7]林雪松,严波,刘仲全,等.220kV高压输电线路风偏有限元模拟研究[J].应用力学学报,2009,26(1):120-124.LIN Xue-song,YAN Bo,LIU Zhong-quan,et al.TheWindage Yaw Finite Element Simulation of220kV OverheadTransmis-sion Lines[J].Chinese Journal of Applied Mecha-nics,2009,26(1):120-124.
[8]刘小会,严波,林雪松,等.500kV超高压输电线路风偏数值模拟研究[J].工程力学,2009,26(1):244-249.LIU Xiao-hui,YAN Bo,LIN Xue-song,et al.NumericalSimulation of Windage Yaw of500kV UHV TransmissionLines[J].Engineering Mechanics,2009,26(1):244-249.
[9]孔德怡,李黎,龙晓鸿,等.悬垂绝缘子串动态风偏角有限元分析[J].电力建设,2008,29(9):5-9.KONG De-yi,LI Li,LONG Xiao-hong,et al.Finite ElementAnalysis of Dynamic Windage Angle of Suspention InsulatorStrings[J].Electric Power Construction,2008,29(9):5-9.
[10]张希黔,葛勇,严春风,等.脉动风场模拟技术的研究与进展[J].地震工程与工程振动,2008,28(6):206-211.ZHANG Xi-qian,GE Yong,YAN Chun-feng,et al.Advances in Research of Simulation Technology of FluctuaionWind Loading[J].Journal of Earthquake Engineering andEngineering Vibration,2008,28(6):206-211.
[11]白海峰,李宏男.大跨越输电塔线体系随机脉动风场模拟研究[J].工程力学,2007,24(7):146-151.BAI Hai-feng,LI Hong-nan.Simulation Stduy of StochasticFluctuating Wind Field on Large Spane Electricity Transmis-sion Tower-line System[J].Engineering Mechanics,2007,24(7):146-151.
[12]贺德馨.风工程与工业空气动力学[M].北京:国防工业出版社,2006.HE De-xin.Wind Engineering and Industrial Aerodynamics[M].Beijing:Defense Industry Press,2006.
[13]SHIINOZUKA M,JAN C M.Digital Simulation of RandomProcesses and Its Applications[J].Journal of Sound andVibration,1972,25(1):111-128.
[14]杨帆,杜文风,王永峰,等.输电塔结构脉动风模拟的谐波叠加法[J].中国科技信息,2008(5):274-275.YANG Fan,DU Wen-feng,WANG Yong-feng,et al.TheWave Superposition Method of the Fluctuating Wind Simula-tion of Transmission Towers[J].China Science and Techno-logy Information,2008(5):274-275.
[15]石辛民,郝整清.基于MATLAB的实用数值计算[M].北京:清华大学出版社,2006.SHI Xin-min,HAO Zheng-qing.A Practical NumericalMethod Based on MATLAB[M].Beijing:TsinghuaUniversity Press,2006.
[16]YAN Bo,LIU Xiao-hui,LIU Bao-an.Dynamic ResponseAnalysis of Windage Yaw of Overhead Transmission Lines[J].WSEAS Transactions on Applied Theoretical Mecha-nics,2006,1(1):90-97.
[17]国家电力公司东北电力设计院.电力工程高压送电线路设计手册[M].2版.北京:中国电力出版社,2003:103-327.Northeast Electric Power Design Institute of National ElectricPower Corporation.Design Manual of High Voltage Trans-mission Lines for Electric Engineering[M].2nd Ed.Beijing:China Electric Power Press,2003:103-337.
[18]谢强,丁兆东,赵桂峰,等.不同横隔面配置方式的输电塔抗风动力响应分析[J].高电压技术,2009,35(3):683-687.XIE Qiang,DING Zhao-dong,ZHAO Gui-feng,et al.WindResistant Analysis of Power Transmission Tower with Diffe-rent Diaphragm Arrangements[J].High Voltage Enginee-ring,2009,35(3):683-687.
[19]刘小会.架空高压输电线路风偏数值模拟研究[D].重庆:重庆大学,2007.LIU Xiao-hui.Numerical Simulation of Windage Yaw ofOverhead Transmission Lines[D].Chongqing:ChongqingUniversity,2007.
[20]张相庭.结构风工程[M].北京:中国建筑工业出版社,2006.ZHANG Xiang-ting.Structures and Wind Engineering[M].Beijing:China Construction Industry Press,2006.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心