配电网过电压在线监测装置布点问题研究
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摘要
配电线路分布广泛,支路众多,基于经济实用的因素,过电压监测装置不能实现在配电线路上的全覆盖监测。为了实现过电压在线监测装置对配网线路所处区域雷电参数的有效监测,从而获得配电线路上更为准确的雷电监测信息,进而分析获得雷电参数信息,在现有的线路雷电相关参数条件下,结合雷电定位系统采集的数据和配电线路的雷击跳闸率提出了一种对不同的工程条件下配电线路安装过电压监测装置布点选择的方法。该方法考虑不同工程条件下的不同影响因素,通过定量的计算,实现配电线路安装过电压监测装置重要性的数值计算,有效地确定过电压监测装置的布点,从而实现更为准确地监测雷电参数,对进一步实现线路耐雷水平的评估、线路防雷设计的改进提供数据基础。
Distribution lines are widely distributed and there are many branches. Based on economic and practical factors,overvoltage monitoring devices can not achieve full coverage monitoring on distribution lines. In order to realize the effective monitoring of lightning parameters in the area where the distribution line is located by the on-line overvoltage monitoring device,so as to obtain more accurate lightning monitoring information on the distribution line,and then analyze and obtain the lightning parameters information,Under the condition of the existing relevant parameters of the circuit lightning,a method of selecting the placement point of the overvoltage monitoring device installed on the distribution line under different engineering conditions is proposed,combining with the data collected by the lightning positioning system and the lightning trip rate of the distribution line. The method takes into account the different influencing factors under different engineering conditions,and realizes the numerical calculation of the importance of overvoltage monitoring device installed on the distribution line through quantitative calculation,and effectively determines the placement point of overvoltage monitoring device,so as to achieve more accurate monitoring of lightning parameters. This paper provides a data basis for the further evaluation of the mine-resistant level of the line and the improvement of the mine-protection design of the line.
Distribution lines are widely distributed and there are many branches. Based on economic and practical factors,overvoltage monitoring devices can not achieve full coverage monitoring on distribution lines. In order to realize the effective monitoring of lightning parameters in the area where the distribution line is located by the on-line overvoltage monitoring device,so as to obtain more accurate lightning monitoring information on the distribution line,and then analyze and obtain the lightning parameters information,Under the condition of the existing relevant parameters of the circuit lightning,a method of selecting the placement point of the overvoltage monitoring device installed on the distribution line under different engineering conditions is proposed,combining with the data collected by the lightning positioning system and the lightning trip rate of the distribution line. The method takes into account the different influencing factors under different engineering conditions,and realizes the numerical calculation of the importance of overvoltage monitoring device installed on the distribution line through quantitative calculation,and effectively determines the placement point of overvoltage monitoring device,so as to achieve more accurate monitoring of lightning parameters. This paper provides a data basis for the further evaluation of the mine-resistant level of the line and the improvement of the mine-protection design of the line.
引文
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[15]陈宣林,谢荣斌,张霖,等.基于层次分析法的停电试验与不停电检测技术等效性分析模型[J].电力大数据,2019,22(02):66-73.CHEN Xuanlin,XIE Rongbin,ZHANG Lin,et al.Equivalence analysis model of power off-line test and on-line detection technology based on analytic hierarchy process[J].Power Systems and Big Data,2019,22(02):66-73.
[16]叶海峰,吴昊,罗颖婷,等.计及暂态过电压累积效应的变压器换位导线绝缘特性[J].广东电力,2018,31(08):75-80.YE Haifeng,WU Hao,LUO Yingting,et al.Insulation characteristic of transformer transposed conductor considering accumulative effect of transient overvoltage[J].Guangdong Electric Power,2018,31(08):75-80.
[17]李其伟,咸日常.用于架空绝缘线路防雷击断线的柱式限压器的研究与应用[J].内蒙古电力技术,2016,34(05):48-51.LI Qiwei,XIAN Richang.Research and application of insulated overhead line lightning broken column voltage limiter[J].Inner Mongolia Electric Power,2016,34(05):48-51.
[2]陈家宏,赵淳,谷山强,等.我国电网雷电监测与防护技术现状及发展趋势[J].高电压技术,2016,42(11):3361-3375.CHEN Jiahong,ZHAO Chun,GU Shanqiang,et al.Present status and development trend of lightning detection and protection technology of power grid in China[J].High Voltage Engineering,2016,42(11):3361-3375.
[3]刘刚,席禹,唐军,等.高压架空输电线路引雷对附近10 k V架空配电线路雷击跳闸特性的影响[J].高电压技术,2014,40(03):690-697.LIU Gang,XI Yu,TANG Jun,et al.Influence of triggered lightning of high voltage overhead transmission lines on 10 kV overhead distribution line’s lightning trip characteristics[J].High Voltage Engineering,2014,40(03):690-697
[4]王博闻,陆佳政,方针,等.一种10 kV配电线路防雷复合绝缘子的绝缘设计及防雷性能[J].电网技术,2018,42(06):2001-2009.WANG Bowen,CHEN Luzhen,FANG Zhen,et al.Study on insulation design and lightning protection performance of lightning protection composite insulators for 10 kV distribution line[J].Power System Technology,2018,42(06):2001-2009.
[5]刘欣,范紫微.架空线路雷电感应电压的宏模型及跳闸率计算[J].华北电力大学学报,2019,46(02):69-75.LIU Xin,FAN Ziwei.Macromodel of lightning induced overvoltages on overhead lines and calculation of lightning flash-over rate[J].Journal of North China Electric Power University,2019,46(02):69-75.
[6]CHENHAOYONG,ASSALA P D S,CAI YONGZI,et al.Intelligent transient overvoltages location in distribution systems using wavelet packet decomposition and general regression neural networks[J].IEEE Transactions on Industrial Informatics,2016,12(05):1726-1735.
[7]AOLARITEI L,BOLOGNANI S,DRFLER F.Hierarchical and distributed monitoring of voltage stability in distribution networks[J].IEEETransactions on Power Systems,2018,33(06):6705-6714.
[8]CHENSHAOQING,WANG HANYU,DU LIN,et al.Research on a new type of overvoltages monitoring sensor and decoupling technology[J].IEEE Transactions on Applied Superconductivity,2014,24(05):1-4.
[9]HASHEM MORTAZAVI,HASAN MEHRJERDI.An impedance-based method for distribution system monitoring[J].IEEE Transactions on Smart Grid,2018,9(01):220-229.
[10]T.MIYAZAKI,S.OKABE.A detailed field study of lightning stroke effects on distribution lines[J].IEEE Transactions on Power Delivery,2009,24(01):352-359.
[11]周凯,何珉,熊庆,等.基于两级分压器的6~35 k V系统过电压在线监测装置[J].高电压技术,2015,41(11):3583-3589.ZHOU Kai,HE Min,XIONG Qing,et al.On-line monitoring device for overvoltages in 6~35 kV grids based on two-stage divider[J].High Voltage Engineering,2015,41(11):3583-3589.
[12]司文荣,傅晨钊,赵丹丹,等.电网暂态过电压传感耦合技术述评[J].高电压技术,2016,42(04):1124-1141.SI Wenrong,FU Chenzhao,ZHAO Dandan,et al.Review on sensors and measurement technologies used for transient overvoltage of power grid[J].High Voltage Engineering,2016,42(04):1124-1141.
[13]周凯,熊庆,何珉,等.10 k V电网过电压监测装置设计及实测与仿真对比分析[J].高电压技术,2015,41(01):35-41.ZHOU Kai,XIONG Qing,HE Min,et al.Design of overvoltage monitoring device for 10 kV power grid and contrastive analysis of its measured and simulation waveforms[J].High Voltage Engineering,2015,41(01):35-41.
[14]黄艳玲,司马文霞,杨庆,等.电力系统实测过电压信号的特征量提取与验证[J].高电压技术,2013,39(01):60-66.HUANG Yanling,SIMA Wenxia,YANG Qing,et al.Features extraction and validation from measured overvoltage signals of power system[J].High Voltage Engineering,2013,39(01):60-66.
[15]陈宣林,谢荣斌,张霖,等.基于层次分析法的停电试验与不停电检测技术等效性分析模型[J].电力大数据,2019,22(02):66-73.CHEN Xuanlin,XIE Rongbin,ZHANG Lin,et al.Equivalence analysis model of power off-line test and on-line detection technology based on analytic hierarchy process[J].Power Systems and Big Data,2019,22(02):66-73.
[16]叶海峰,吴昊,罗颖婷,等.计及暂态过电压累积效应的变压器换位导线绝缘特性[J].广东电力,2018,31(08):75-80.YE Haifeng,WU Hao,LUO Yingting,et al.Insulation characteristic of transformer transposed conductor considering accumulative effect of transient overvoltage[J].Guangdong Electric Power,2018,31(08):75-80.
[17]李其伟,咸日常.用于架空绝缘线路防雷击断线的柱式限压器的研究与应用[J].内蒙古电力技术,2016,34(05):48-51.LI Qiwei,XIAN Richang.Research and application of insulated overhead line lightning broken column voltage limiter[J].Inner Mongolia Electric Power,2016,34(05):48-51.