广义双回线路反向量行波特性新解
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摘要
通过理论分析和仿真发现:采用两回线路电流构造得到双回线路反向量电流行波,并非不受双回线路以外的系统接线情况的影响,其故障点反射波和对端母线反射波不仅与故障点过渡电阻有关系,还与两端母线的出线数有关。因此,构建基于行波传播路径的双回线路行波分析体系。在该体系下,首次推导出双回线路等长和不等长情况下反向量故障初始行波、故障点反射波以及对端母线反射波的表达式以及得到反向量故障点反射波、对端母线反射波与故障点过渡电阻以及母线端出线的数学关系,并提出基于广义双回线路反向量行波的概念。大量仿真和实测数据表明:基于行波传播路径分析反向量行波特性的正确性。
From theoretical analysis and simulation, it is found that: the reverse direction traveling wave is obtained by the linear addition of the current of the two circuit lines. It is affected by the system outside the double circuit line, and the reflection wave from fault point and from the remote terminal bus are not only related to the transition resistance of the fault point, but also to the the number of adjacent sound lines of the two ends. Therefore, a traveling wave analysis system based on traveling wave propagation path was constructed. Under this system, the expression of the initial traveling wave, as well as the reflected wave from the fault point and from the terminal bus were derived, and the mathematical relationship between the reflection coefficient of the reverse direction traveling wave from the fault point and from the remote terminal bus were obtained under the condition of equal length and unequal length of double circuit lines. The concept of reverse traveling wave based on generalized double circuit line was proposed. A large number of simulation and measured data show that it is correct to use the traveling wave propagation path to analyze the characteristic of the reverse direction traveling wave.
From theoretical analysis and simulation, it is found that: the reverse direction traveling wave is obtained by the linear addition of the current of the two circuit lines. It is affected by the system outside the double circuit line, and the reflection wave from fault point and from the remote terminal bus are not only related to the transition resistance of the fault point, but also to the the number of adjacent sound lines of the two ends. Therefore, a traveling wave analysis system based on traveling wave propagation path was constructed. Under this system, the expression of the initial traveling wave, as well as the reflected wave from the fault point and from the terminal bus were derived, and the mathematical relationship between the reflection coefficient of the reverse direction traveling wave from the fault point and from the remote terminal bus were obtained under the condition of equal length and unequal length of double circuit lines. The concept of reverse traveling wave based on generalized double circuit line was proposed. A large number of simulation and measured data show that it is correct to use the traveling wave propagation path to analyze the characteristic of the reverse direction traveling wave.
引文
[1]杜婉琳,梁远升,王钢.局部耦合双回输电线路故障测距时域算法[J].电力系统保护与控制,2017,45(8):59-66.Du Wanlin,Liang Yuansheng,Wang Gang.Fault location algorithm based on time-domain for partial coupling double-circuit transmission lines[J].Power System Protection and Control,2017,45(8):59-66(in Chinese).
[2]宋国兵,索南加乐,许庆强,等.同杆双回线环流量的行波特点[J].继电器,2004,32(3):1-5.Song Guobing,Suonan Jiale,Xu Qingqiang,et al.Travelling wave characteristics of circumfluence component of double-circuit lines on the same pole[J].Relay,2004,32(3):1-5(in Chinese).
[3]覃剑,黄震,邱宇峰,等.基于小波变换的同杆并架双回线双端行波故障测距[J].电力系统自动化,2004,28(5):51-55.Qin Jian,Huang Zhen,Qiu Yufeng,et al.Wavelet transform based double terminal method of travelling wave fault location in double-circuit parallel transmission line[J].Automation of Electric Power Systems,2004,28(5):51-55(in Chinese).
[4]覃剑,黄震,杨华,等.同杆并架双回线路行波传播特性的研究[J].中国电机工程学报,2004,24(5):30-34.Qin Jian,Huang Zhen,Yang Hua,et al.Study on travelling wave propagation in double-circuit parallel transmission line[J].Proceedings of the CSEE,2004,24(5):30-34(in Chinese).
[5]李振兴,田斌,李振华,等.适用于单/双回线的双端非同步故障测距方法[J].电力系统自动化,2016,40(22):105-110.Li Zhenxing,Tian Bin,Li Zhenhua,et al.Two-terminal nonsynchronized fault location algorithms for single/double transmission lines[J].Automation of Electric Power Systems,2016,40(22):105-110(in Chinese).
[6]朱永利,范国琛,赵雪松,等.同杆双回输电线路的四点行波故障定位方法[J].电力系统及其自动化学报,2016,28(12):124-129.Zhu Yongli,Fan Guochen,Zhao Xuesong,et al.Four-point traveling wave fault location scheme for double circuit lines[J].Proceedings of the CSU-EPSA,2016,28(12):124-129(in Chinese).
[7]雷傲宇,董新洲,施慎行.一种识别输电线路单相接地故障下第二个反向行波的方法[J].中国电机工程学报,2016,36(8):2151-2158.Lei Aoyu,Dong Xinzhou,Shi Shenxing.A method to identify the second reverse travelling wave induced by single-phase-to-ground fault in transmission line[J].Proceedings of the CSEE,2016,36(8):2151-2158(in Chinese).
[8]许飞,董新洲,王宾,等.考虑二次回路暂态传变特性的单端组合测距算法及其应用[J].中国电机工程学报,2015,35(20):5210-5219.Xu Fei,Dong Xinzhou,Wang Bin,et al.Single-ended assembled fault location method and application considering secondary circuit transfer characteristics[J].Proceedings of the CSEE,2015,35(20):5210-5219(in Chinese).
[9]索南加乐,吴亚萍,宋国兵,等.基于分布参数的同杆双回线单线故障准确测距原理[J].中国电机工程学报,2003,23(5):39-43.Suonan Jiale,Wu Yaping,Song Guobing,et al.New accurate fault location algorithm for parallel lines on the same tower based on distribute parameter[J].Proceedings of the CSEE,2003,23(5):39-43(in Chinese).
[10]王超.输电线路故障行波分析与测距[D].昆明:昆明理工大学,2006.WangChao.Traveling wave analysis and location of transmission line faults[D].Kunming:Kunming University of Science and Technology,2006(in Chinese).
[11]施慎行,董新洲,周双喜.单相接地故障行波分析[J].电力系统自动化,2005,29(23):29-32,53.Shi Shenxing,Dong Xinzhou,Zhou Shuangxi.Analysis of single-phase-to-ground fault generated traveling waves[J].Automation of Electric Power Systems,2005,29(23):29-32,53(in Chinese).
[12]束洪春,王超,孙向飞,等.输电线路故障模量行波的耦合现象研究[J].中国电机工程学报,2005,25(S1):123-128.Shu Hongchun,Wang Chao,Sun Xiangfei,et al.Study on coupleing phenomenon of transmission line fault modal traveling waves[J].Proceedings of the CSEE,2005,25(S1):123-128(in Chinese).
[2]宋国兵,索南加乐,许庆强,等.同杆双回线环流量的行波特点[J].继电器,2004,32(3):1-5.Song Guobing,Suonan Jiale,Xu Qingqiang,et al.Travelling wave characteristics of circumfluence component of double-circuit lines on the same pole[J].Relay,2004,32(3):1-5(in Chinese).
[3]覃剑,黄震,邱宇峰,等.基于小波变换的同杆并架双回线双端行波故障测距[J].电力系统自动化,2004,28(5):51-55.Qin Jian,Huang Zhen,Qiu Yufeng,et al.Wavelet transform based double terminal method of travelling wave fault location in double-circuit parallel transmission line[J].Automation of Electric Power Systems,2004,28(5):51-55(in Chinese).
[4]覃剑,黄震,杨华,等.同杆并架双回线路行波传播特性的研究[J].中国电机工程学报,2004,24(5):30-34.Qin Jian,Huang Zhen,Yang Hua,et al.Study on travelling wave propagation in double-circuit parallel transmission line[J].Proceedings of the CSEE,2004,24(5):30-34(in Chinese).
[5]李振兴,田斌,李振华,等.适用于单/双回线的双端非同步故障测距方法[J].电力系统自动化,2016,40(22):105-110.Li Zhenxing,Tian Bin,Li Zhenhua,et al.Two-terminal nonsynchronized fault location algorithms for single/double transmission lines[J].Automation of Electric Power Systems,2016,40(22):105-110(in Chinese).
[6]朱永利,范国琛,赵雪松,等.同杆双回输电线路的四点行波故障定位方法[J].电力系统及其自动化学报,2016,28(12):124-129.Zhu Yongli,Fan Guochen,Zhao Xuesong,et al.Four-point traveling wave fault location scheme for double circuit lines[J].Proceedings of the CSU-EPSA,2016,28(12):124-129(in Chinese).
[7]雷傲宇,董新洲,施慎行.一种识别输电线路单相接地故障下第二个反向行波的方法[J].中国电机工程学报,2016,36(8):2151-2158.Lei Aoyu,Dong Xinzhou,Shi Shenxing.A method to identify the second reverse travelling wave induced by single-phase-to-ground fault in transmission line[J].Proceedings of the CSEE,2016,36(8):2151-2158(in Chinese).
[8]许飞,董新洲,王宾,等.考虑二次回路暂态传变特性的单端组合测距算法及其应用[J].中国电机工程学报,2015,35(20):5210-5219.Xu Fei,Dong Xinzhou,Wang Bin,et al.Single-ended assembled fault location method and application considering secondary circuit transfer characteristics[J].Proceedings of the CSEE,2015,35(20):5210-5219(in Chinese).
[9]索南加乐,吴亚萍,宋国兵,等.基于分布参数的同杆双回线单线故障准确测距原理[J].中国电机工程学报,2003,23(5):39-43.Suonan Jiale,Wu Yaping,Song Guobing,et al.New accurate fault location algorithm for parallel lines on the same tower based on distribute parameter[J].Proceedings of the CSEE,2003,23(5):39-43(in Chinese).
[10]王超.输电线路故障行波分析与测距[D].昆明:昆明理工大学,2006.WangChao.Traveling wave analysis and location of transmission line faults[D].Kunming:Kunming University of Science and Technology,2006(in Chinese).
[11]施慎行,董新洲,周双喜.单相接地故障行波分析[J].电力系统自动化,2005,29(23):29-32,53.Shi Shenxing,Dong Xinzhou,Zhou Shuangxi.Analysis of single-phase-to-ground fault generated traveling waves[J].Automation of Electric Power Systems,2005,29(23):29-32,53(in Chinese).
[12]束洪春,王超,孙向飞,等.输电线路故障模量行波的耦合现象研究[J].中国电机工程学报,2005,25(S1):123-128.Shu Hongchun,Wang Chao,Sun Xiangfei,et al.Study on coupleing phenomenon of transmission line fault modal traveling waves[J].Proceedings of the CSEE,2005,25(S1):123-128(in Chinese).