高压线路单相弧光接地对数仿真模型数据修正算法
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摘要
受污闪、山火等因素影响,中性点接地高压输电线路易发生单相弧光高阻接地故障,但总体来讲现场获取的故障数据仍然严重不足,制约了弧光接地故障检测及保护技术的研究。人工弧光高阻接地故障实验成本较高,也难以普及应用。针对该问题,文中基于可直接表征电弧燃弧V-I特征的对数电弧模型,详细分析了该模型仿真数据和录波数据的差异性,针对该模型所表征出的电弧V-I特征未能反映实测录波数据中V-I相角差的问题,提出了一种对该模型仿真数据进行修正的数据处理算法,修正后的数据波形具有和真实录波V-I曲线更为接近的外特征,为后续弧光高阻接地故障的研究提供了数据支撑。
Due to the impacts of insulator flashover and mountain fire,the single-phase arc high-impedance grounding fault often occurs on the high-voltage transmission line with neutral point grounding.But up to now,only limited field fault data are available,which limits the correlative research of fault detection and protection.The experiment cost of artificial arc highimpedance grounding fault is high,so it is difficult to popularize the application.Based on the logarithmic arc model that can directly characterize the arcing V-I feature,this paper analyzes the difference between simulation data and record data.A data correction algorithm of the simulation model is proposed to solve the problem that the arcing V-I feature from the simulation model cannot reflect the difference between phase angles of V and I from the measured record data.The waveforms of corrected data have more similar external characteristics to the real record V Icurves,which provides data support for the follow-up study of arc high-impedance grounding fault.
Due to the impacts of insulator flashover and mountain fire,the single-phase arc high-impedance grounding fault often occurs on the high-voltage transmission line with neutral point grounding.But up to now,only limited field fault data are available,which limits the correlative research of fault detection and protection.The experiment cost of artificial arc highimpedance grounding fault is high,so it is difficult to popularize the application.Based on the logarithmic arc model that can directly characterize the arcing V-I feature,this paper analyzes the difference between simulation data and record data.A data correction algorithm of the simulation model is proposed to solve the problem that the arcing V-I feature from the simulation model cannot reflect the difference between phase angles of V and I from the measured record data.The waveforms of corrected data have more similar external characteristics to the real record V Icurves,which provides data support for the follow-up study of arc high-impedance grounding fault.
引文
[1]孙月琴,倪江,王宾,等.应用于输电线路单端测距的高阻接地故障电弧模型分析[J].电力系统自动化,2016,40(22):86-92.DOI:10.7500/AEPS20151204004.SUN Yueqin,NI Jiang,WANG Bin,et al.Transmission line high-impedance fault modeling analysis for single-end fault location[J].Automation of Electric Power Systems,2016,40(22):86-92.DOI:10.7500/AEPS20151204004.
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[14]王宾,耿建昭,董新洲.配网高阻接地故障伏安特性分析及检测[J].中国电机工程学报,2014,34(22):3815-3823.WANG Bin,GENG Jianzhao,DONG Xinzhou.Analysis and detection of volt-ampere characteristics for high impedance[J].Proceedings of the CSEE,2014,34(22):3815-3823.
[15]张怿宁,束洪春,田鑫萃,等.特高压直流输电线路接地极线路高阻故障测距方法研究[J].电力系统保护与控制,2015,43(24):1-7.ZHANG Yining,SHU Hongchun, TIAN Xincui,et al.Research on fault location algorithm for HVDC electrode line high impedance fault[J].Power System Protection and Control,2015,43(24):1-7.
[16]张莉,余慧芳,檀结庆.带平台伸缩函数的参数曲线变形[J].中国图象图形学报,2015,20(10):1374-1383.ZHANG Li, YU Huifang,TAN Jieqing.Deformation of parametric curves based on platform extension function[J].Journal of Image and Graphics,2015,20(10):1374-1383.
[17]王小平,叶正麟,周儒荣,等.平面参数曲线周期性形状修改与变形[J].西北工业大学学报,2003,21(2):184-186.WANG Xiaoping,YE Zhenglin,ZHOU Rurong,et al.A new method for periodic shape deformation of parametric curves based on EF[J].Journal of Northwestern Polytechnical University,2003,21(2):184-186.
[2]景敏慧,柳焕章,邓洪涛,等.平行双回线路高阻接地故障保护的新思路[J].电力系统自动化,2008,32(8):55-58.JING Minhui,LIU Huanzhang,DENG Hongtao,et al.New protection scheme for high resistance ground fault on the parallel double-circuit transmission lines[J].Automation of Electric Power Systems,2008,32(8):55-58.
[3]BENNER C L,RUSSELL B D.Practical high-impedance fault detection on distribution feeders[J].IEEE Transactions on Industry Applications,1997,33(3):635-640.
[4]李会新,谢俊,王玉龙,等.超高压输电线路保护装置自适应整定及性能优化[J].电力系统自动化,2018,42(17):148-154.DOI:10.7500/AEPS20170904004.LI Huixin,XIE Jun,WANG Yulong,et al.Adaptive setting and performance optimization of protection devices on extra-high voltage transmission line[J].Automation of Electric Power Systems, 2018, 42(17):148-154. DOI:10.7500/AEPS20170904004.
[5]王宾,倪江,王海港,等.输电线路弧光高阻接地故障单端测距分析[J].中国电机工程学报,2017,37(5):1333-1341.WANG Bin,NI Jiang,WANG Haigang,et al.Single-end fault location for high impedance arc grounding fault in transmission line[J].Proceedings of the CSEE,2017,37(5):1333-1341.
[6]陈佳佳,邰能灵,林韩,等.利用单端暂态量检测单相高阻接地故障的新方法[J].电力系统自动化,2007,31(9):56-60.CHEN Jiajia,TAI Nengling,LIN Han,et al.Novel non-unit transient-based protection of single phase high-impedance fault[J].Automation of Electric Power Systems,2007,31(9):56-60.
[7]束洪春,司大军,葛耀中,等.高压输电线路电弧故障单端定位时域法新解[J].中国电机工程学报,2000,20(11):26-30.SHU Hongchun,SI Dajun,GE Yaozhong,et al.A new time domain method for locating arc fault in EHV transmission line using one terminal data[J].Proceedings of the CSEE,2000,20(11):26-30.
[8]黄道春,黎鹏,阮江军,等.交流输电线路模型在山火条件下的击穿机理[J].高电压技术,2011,37(5):1115-1122.HUANG Daochun,LI Peng,RUAN Jiangjun,et al.Review on dischargemechanismandbreakdowncharacteristicof transmission line gap under forest fire condition[J].High Voltage Engineering,2011,37(5):1115-1122.
[9]吴田,阮江军,胡毅,等.500kV输电线路的山火击穿特性及机制研究[J].中国电机工程学报,2011,31(34):163-170.WU Tian,RUAN Jiangjun,HU Yi,et al.Study on forest fire induced breakdown of 500 kV transmission line in terms of characteristic and mechanism[J].Proceedings of the CSEE,2011,31(34):163-170.
[10]TERZIJA V,PERSTON G,POPOV M,et al.New static“AirArc”EMTP model of long arc in free air[J].IEEE Transactions on Power Delivery,2011,26(3):1344-1353.
[11]ELKALASHY N I,LEHTONEN M,DARWISH H A,et al.Modeling and experimental verification of high impedance arcing fault in medium voltage network[J].IEEE Transactions on Dielectrics and Electrical Insulation,2007,14(2):375-383.
[12]CASSIE A M.Arc rupture and circuit security:a new theory[R].1939.
[13]梁曦东,陈昌渔,周远翔.高电压工程[M].北京:清华大学出版社,2003.LIANG Xidong,CHEN Changyu,ZHOU Yuanxiang.High voltage engineering[M].Beijing:Tsinghua University Press,2003.
[14]王宾,耿建昭,董新洲.配网高阻接地故障伏安特性分析及检测[J].中国电机工程学报,2014,34(22):3815-3823.WANG Bin,GENG Jianzhao,DONG Xinzhou.Analysis and detection of volt-ampere characteristics for high impedance[J].Proceedings of the CSEE,2014,34(22):3815-3823.
[15]张怿宁,束洪春,田鑫萃,等.特高压直流输电线路接地极线路高阻故障测距方法研究[J].电力系统保护与控制,2015,43(24):1-7.ZHANG Yining,SHU Hongchun, TIAN Xincui,et al.Research on fault location algorithm for HVDC electrode line high impedance fault[J].Power System Protection and Control,2015,43(24):1-7.
[16]张莉,余慧芳,檀结庆.带平台伸缩函数的参数曲线变形[J].中国图象图形学报,2015,20(10):1374-1383.ZHANG Li, YU Huifang,TAN Jieqing.Deformation of parametric curves based on platform extension function[J].Journal of Image and Graphics,2015,20(10):1374-1383.
[17]王小平,叶正麟,周儒荣,等.平面参数曲线周期性形状修改与变形[J].西北工业大学学报,2003,21(2):184-186.WANG Xiaoping,YE Zhenglin,ZHOU Rurong,et al.A new method for periodic shape deformation of parametric curves based on EF[J].Journal of Northwestern Polytechnical University,2003,21(2):184-186.