不平衡绝缘配置防治同塔四回输电线路雷击同时跳闸效果仿真研究
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摘要
同塔多回线路遭受雷击容易出现多回线路同时跳闸事件,对电力系统安全运行造成极大威胁,研究如何防治同塔线路雷击同跳措施具有重要意义。本文采用EMTP-ATP软件,针对典型220 kV同塔四回线路、220/110 kV同塔混压四回线路和500/220 kV同塔混压四回线路,采用增加绝缘子片数、安装线路避雷器、安装并联间隙这三种典型不平衡绝缘配置方案和降低杆塔接地电阻措施,对上述四种措施防治雷击同时跳闸效果进行仿真分析。研究表明:不平衡绝缘配置方式和降低杆塔接地电阻措施,可有效提高同塔四回线路反击耐雷水平,降低雷电反击跳闸和雷击同跳故障比例,对于我国多雷区、强雷区同塔多回线路防雷保护具有重要参考价值和指导意义。
Simultaneous lightning trip-out failure always occurs while Multi-circuit power transmission line on the same tower suffers lightning strike,which poses a threat to the supply safety and stability of power system. Therefore,it makes great significance to research prevention measure to guard against simultaneous lightning trip-out failure. In this paper,ATP-EMTP software was used to research and evaluate the protection effect of four measures on typical 220 kV、220/110 kV and 500/220 kV four-circuit lines against lightning,including unbalanced insulation,installing line arrester,installing paralleling gap and reducing grounding resistance. The results show that differentiation lightning protection based on unbalanced insulation configuration and reduction of tower grounding resistance can efficiently enhance lightning back withstand level of four-circuit power transmission line on same tower,reduce ratio of simultaneous lightning trip-out failure. The research is instructive for the future simultaneous lightning trip-out failure prevention work of multi-circuit power transmission line.
Simultaneous lightning trip-out failure always occurs while Multi-circuit power transmission line on the same tower suffers lightning strike,which poses a threat to the supply safety and stability of power system. Therefore,it makes great significance to research prevention measure to guard against simultaneous lightning trip-out failure. In this paper,ATP-EMTP software was used to research and evaluate the protection effect of four measures on typical 220 kV、220/110 kV and 500/220 kV four-circuit lines against lightning,including unbalanced insulation,installing line arrester,installing paralleling gap and reducing grounding resistance. The results show that differentiation lightning protection based on unbalanced insulation configuration and reduction of tower grounding resistance can efficiently enhance lightning back withstand level of four-circuit power transmission line on same tower,reduce ratio of simultaneous lightning trip-out failure. The research is instructive for the future simultaneous lightning trip-out failure prevention work of multi-circuit power transmission line.
引文
[1]李汉明,陈维江,詹铭,等.220/110 k V同杆四回线路耐雷性能的研究[J].电网技术,2005,29(21):27-30.LI Hanming,CHEN Weijiang,ZHAN Ming,et al.Research on lightning performance of quadruple circuit transmission line with dual voltage 220/110 k V on the same Tower[J].Power System Technology,2005,29(21):27-30.
[2]周浩,赵斌财,王东举,等.500/220 k V同塔四回线路的耐雷性能研究[J].高电压技术,2008(10):2075-2080.ZHOU Hao,ZHAO Bincai,WANG Dongju,et al.Lightning performance of quadruple-circuit transmission line with dual voltage 500/220 k V on the same Tower[J].High Voltage Engineering,2008(10):2075-2080.
[3]彭向阳,詹清华,周华敏.广东电网同塔多回线路雷击跳闸影响因素及故障分析[J].电网技术,2012,36(3):81-87.PENG Xiangyang,ZHAN Qinghua,ZHOU Huamin.Influencing factors of lightning outage in multi-circuit transmission lines on same Tower in Guangdong power grid and fault analysis[J].Power System Technology,2012,36(3):81-87.
[4]彭向阳,余占清,李志峰,等.同塔4回输电线路差异化防雷效果仿真分析[J].高电压技术,2014,40(3):732-740.PENG Xiangyang,YU Zhanqing,LI Zhifeng,et al.Simulative analysis of differentiation lightning protection effect of four-circuit overhead transmission lines[J].High Voltage Engineering,2014,40(3):732-740.
[5]彭向阳,王锐,周华敏,等.基于不平衡绝缘的同塔多回输电线路差异化防雷技术及应用[J].广东电力,2016(6):109-116.PENG Xiangyang,WANG Rui,ZHOU Huamin,et al.Differentiated lightning protection technology and its application based on unbalanced insulation for multi-circuit power transmission line on the same Tower[J].Guangdong Electric Power,2016(6):109-116.
[6]CIGRE SC33-WG01.CIGRE guide to procedure for estimating the lightning performances of transmission line[R].Paris,France:CIGRE SC33-WG01,1991.
[7]IEEE Working Group.Estimating lightning performance of transmission lines updates to analytical models[R].[S.I.]:IEEE Working Group,1993.
[8]SARGENT M A,DARVENIZA M.Tower surge impedance[J].IEEE Transactions on Power Apparatus and Systems,1969,PAS-88(5):680-687.
[9]杜林,糜翔,杨勇,等.雷击输电线路杆塔时的杆塔等效模型[J].高电压技术,2011,37(1):28-33.DU Lin,MI Xiang,YANG Yong,et al.Equivalent model of transmission Tower under lightning striking[J].High Voltage Engineering,2011,37(1):28-33.
[10]莫付江,陈允平,阮江军.输电线路杆塔模型与防雷性能计算研究[J].电网技术,2004,28(21):80-84.MO Fujiang,CHEN Yunping,RUAN Jiangjun.Study ontransmission Tower models and their lightning performance calculation[J].Power System Technology,2004,28(21):80-84.
[11]BROWN G W.White head E R.Field and analytical studies of transmission line shielding:part II[J].IEEETransactions on Power Apparatus and System,1969,88(5):617-626.
[12]BROCHURE C.Guide to procedures for estimating the lightning performance of transmission lines[J].CIGREBrochure,1991(63):1-48.
[13]肖萍,汪沨,黄福勇,等.基于连续先导的线路绝缘闪络判据的研究[J].电网技术,2012,36(11):271-276.XIAO Ping,WANG Feng,HUANG Fuyong,et al.Research on criterion for line insulation flashover based on development of continuous leader[J].Power System Technology,2012,36(11):271-276.
[14]孙萍.有关输电线路防雷计算中几个参数取值的建议[J].电网技术,1998,22(8):75-78.SUN Ping.Some suggestions on setting of parameter values in lightning protection calculation for transmission lines[J].Power System Technology,1998,22(8):75-78.
[15]莫付江,陈允平,阮江军.架空输电线路雷击感应过电压耦合机理及计算方法分析[J].电网技术,2005,29(6):72-77.MO Fujiang,CHEN Yunping,RUAN Jiangjun.Analysis on coupling mechanism and calculation method of lightning induced surge on overhead transmission lines[J].Power System Technology,2005,29(6):72-77.
[16]胡毅.输电线路运行故障的分析与防治[J].高电压技术,2007(3):1-8.HU Yi.Analysis on operation faults of transmission line and countermeasures[J].High Voltage Engineering,2007(3):1-8.
[17]李宝聚,周浩.1000 k V同塔双回线路感应电压和电流的计算分析[J].电网技术,2011(3):14-19.LI Baoju,ZHOU Hao.Calculation and analysis on induced voltage and current of 1000 kV transmission line adopting structure of double circuit on the same Tower[J].Power System Technology,2011(3):14-19.
[18]陈维江,孙昭英,李国富,等.110 k V和220 k V架空线路并联间隙防雷保护研究[J].电网技术,2006,30(13):70-75.CHEN Weijiang,SUN Zhaoying,LI Guofu,et al.Development of parallel gap lightning protection device for 110k V and 220 k V overhead lines[J].Power System Technology,2006,30(13):70-75.
[2]周浩,赵斌财,王东举,等.500/220 k V同塔四回线路的耐雷性能研究[J].高电压技术,2008(10):2075-2080.ZHOU Hao,ZHAO Bincai,WANG Dongju,et al.Lightning performance of quadruple-circuit transmission line with dual voltage 500/220 k V on the same Tower[J].High Voltage Engineering,2008(10):2075-2080.
[3]彭向阳,詹清华,周华敏.广东电网同塔多回线路雷击跳闸影响因素及故障分析[J].电网技术,2012,36(3):81-87.PENG Xiangyang,ZHAN Qinghua,ZHOU Huamin.Influencing factors of lightning outage in multi-circuit transmission lines on same Tower in Guangdong power grid and fault analysis[J].Power System Technology,2012,36(3):81-87.
[4]彭向阳,余占清,李志峰,等.同塔4回输电线路差异化防雷效果仿真分析[J].高电压技术,2014,40(3):732-740.PENG Xiangyang,YU Zhanqing,LI Zhifeng,et al.Simulative analysis of differentiation lightning protection effect of four-circuit overhead transmission lines[J].High Voltage Engineering,2014,40(3):732-740.
[5]彭向阳,王锐,周华敏,等.基于不平衡绝缘的同塔多回输电线路差异化防雷技术及应用[J].广东电力,2016(6):109-116.PENG Xiangyang,WANG Rui,ZHOU Huamin,et al.Differentiated lightning protection technology and its application based on unbalanced insulation for multi-circuit power transmission line on the same Tower[J].Guangdong Electric Power,2016(6):109-116.
[6]CIGRE SC33-WG01.CIGRE guide to procedure for estimating the lightning performances of transmission line[R].Paris,France:CIGRE SC33-WG01,1991.
[7]IEEE Working Group.Estimating lightning performance of transmission lines updates to analytical models[R].[S.I.]:IEEE Working Group,1993.
[8]SARGENT M A,DARVENIZA M.Tower surge impedance[J].IEEE Transactions on Power Apparatus and Systems,1969,PAS-88(5):680-687.
[9]杜林,糜翔,杨勇,等.雷击输电线路杆塔时的杆塔等效模型[J].高电压技术,2011,37(1):28-33.DU Lin,MI Xiang,YANG Yong,et al.Equivalent model of transmission Tower under lightning striking[J].High Voltage Engineering,2011,37(1):28-33.
[10]莫付江,陈允平,阮江军.输电线路杆塔模型与防雷性能计算研究[J].电网技术,2004,28(21):80-84.MO Fujiang,CHEN Yunping,RUAN Jiangjun.Study ontransmission Tower models and their lightning performance calculation[J].Power System Technology,2004,28(21):80-84.
[11]BROWN G W.White head E R.Field and analytical studies of transmission line shielding:part II[J].IEEETransactions on Power Apparatus and System,1969,88(5):617-626.
[12]BROCHURE C.Guide to procedures for estimating the lightning performance of transmission lines[J].CIGREBrochure,1991(63):1-48.
[13]肖萍,汪沨,黄福勇,等.基于连续先导的线路绝缘闪络判据的研究[J].电网技术,2012,36(11):271-276.XIAO Ping,WANG Feng,HUANG Fuyong,et al.Research on criterion for line insulation flashover based on development of continuous leader[J].Power System Technology,2012,36(11):271-276.
[14]孙萍.有关输电线路防雷计算中几个参数取值的建议[J].电网技术,1998,22(8):75-78.SUN Ping.Some suggestions on setting of parameter values in lightning protection calculation for transmission lines[J].Power System Technology,1998,22(8):75-78.
[15]莫付江,陈允平,阮江军.架空输电线路雷击感应过电压耦合机理及计算方法分析[J].电网技术,2005,29(6):72-77.MO Fujiang,CHEN Yunping,RUAN Jiangjun.Analysis on coupling mechanism and calculation method of lightning induced surge on overhead transmission lines[J].Power System Technology,2005,29(6):72-77.
[16]胡毅.输电线路运行故障的分析与防治[J].高电压技术,2007(3):1-8.HU Yi.Analysis on operation faults of transmission line and countermeasures[J].High Voltage Engineering,2007(3):1-8.
[17]李宝聚,周浩.1000 k V同塔双回线路感应电压和电流的计算分析[J].电网技术,2011(3):14-19.LI Baoju,ZHOU Hao.Calculation and analysis on induced voltage and current of 1000 kV transmission line adopting structure of double circuit on the same Tower[J].Power System Technology,2011(3):14-19.
[18]陈维江,孙昭英,李国富,等.110 k V和220 k V架空线路并联间隙防雷保护研究[J].电网技术,2006,30(13):70-75.CHEN Weijiang,SUN Zhaoying,LI Guofu,et al.Development of parallel gap lightning protection device for 110k V and 220 k V overhead lines[J].Power System Technology,2006,30(13):70-75.