Abstract：To deal with the fault locating problem against single-phase-to-ground fault in arc-suppression-coil earthed power distribution systems,a fault locating algorithm is presented for single-phase-to-ground fault in arc-suppression-coil earthed power distribution systems based on parameter estimation principle.By regarding the full-wave zero-sequence equivalent circuit as the estimation model and treating the fault distance,fault resistance and zero-sequence capacitance as the unknown parameters,the objective function of parameter estimation can be established according to the fault voltages and currents.The least-square estimation method is used to obtain the optimal parameters.So the distance between the fault location and the bus side can be obtained.In addition,considering branches likely existed in the distribution lines,deductive logics are constructed as the complement for the basic fault location method to improve the applicability of the method.The presented algorithm can be integrated in the fault selection device to implement the dual function without extra equipment.Simulations and experiments are conducted to verify the feasibility and accuracy of the proposed method.
贾清泉, 王振宇 ,王 宁, 董海艳, 艾 丽. 基于参数辨识的消弧线圈接地电网单相接地故障测[J]. 电工技术学报, 2016, 31(23): 77-85.
Jia Qingquan, Wang Zhenyu, Wang Ning ,Dong Haiyan, Ai Li. A Single-Phase-to-Ground Fault Locating Algorithm for Arc-Suppression-Coil Earthed Power Distribution Systems Based on Parameter Estimation. Transactions of China Electrotechnical Society, 2016, 31(23): 77-85.
[1] 张淑清,马跃,李盼,等.基于改进的广义谐波小波包分解和混沌振子的小电流接地系统故障选线[J].电工技术学报,2015,30(3):13-20,43. Zhang Shuqing,Ma Yue,Li Pan,et al.Application of improved generalized harmonic wavelet packet decomposition and chaos oscillator to fault line detection in small current grounding system[J].Transactions of China Electrotechnical Society,2015,30(3):13-20,43. [2] 王朋,田翠华,陈柏超,等.基于新型磁控消弧线圈的电磁混合消弧及配合选线新方法[J].电工技术学报,2015,30(16):175-183. Wang Peng,Tian Cuihua,Chen Baichao,et al.Electromagnetic hybrid arc suppression and a novel method of feeder selection based on the novel magnetic controlled petersen coil[J].Transactions of China Electrotechnical Society,2015,30(16):175-183. [3] 闫光太,梁甲文,王新涛,等.利用暂态幅值故障测度的谐振电网故障选线[J].电力系统保护与控制,2015,43(8):64-68. Yan Guangtai,Liang Jiawen,Wang Xintao,et al.A fault feeder selection method for resonant grounding system based on transient[J].Power System Protection and Control,2015,43(8):64-68. [4] 李震球,王时胜,吴丽娜.一种谐振接地系统电弧高阻接地故障选线新方法及仿真[J].电力系统保护与控制,2014,42(17):44-49. Li Zhenqiu,Wang Shisheng,Wu Lina.A new method and simulation for arcing high-impedance-grounding fault line selection in resonant grounded system[J].Power System Protection and Control,2014,42(17):44-49. [5] 贾清泉,杨奇逊,杨以涵.基于故障测度概念与证据理论的配电网单相接地故障多判据融合[J].中国电机工程学报,2003,23(12):6-11. Jia Qingquan,Yang Qixun,Yang Yihan.Fusion strategy for single phase to ground fault detection implemented through fault measures and evidence theory[J].Proceedings of the CSEE,2003,23(12):6-11. [6] 贾清泉,石磊磊,王宁,等.基于证据理论和信息熵的消弧线圈接地电网融合选线方法[J].电工技术学报,2012,27(6):191-197. Jia Qingquan,Shi Leilei,Wang Ning,et al.A fusion method for ground fault line detection in compensated power networks based on evidence theory and information entropy[J].Transactions of China Electrotechnical Society,2012,27(6):191-197. [7] 司瑞琦,黄翰,罗建,等.基于消弧线圈补偿特征的故障选线新方法[J].电力系统保护与控制,2014,42(23):16-22. Si Ruiqi,Huang Han,Luo Jian,et al.Fault line selection approach based on compensation characteristics of extinction coil[J].Power System Protection and Control,2014,42(23):16-22. [8] 牛云涛,李华,宋志宏,等.谐振接地系统多判据多周期信息融合故障选线方法[J].电工技术学报,2015,30(S1):512-517. Niu Yuntao,Li Hua,Song Zhihong,et al.Fault line selection for grounding power network in arc suppression coil based on information fusion[J].Transactions of China Electrotechnical Society,2015,30(S1):512-517. [9] He Zhengyou,Zhang Junli,Li Weihua,et al.Improved fault location system using superimposed signal[J].IEEE Transactions on Power Delivery,2010,25(3):1899-1911. [10]王楠,张利,杨以涵.10 kV配电网单相接地故障交直流信号注入综合定位法[J].电网技术,2008,32(24):88-92. Wang Nan,Zhang Li,Yang Yihan.A comprehensive location method using AC/DC signal injecting for single-phase earthfault in 10 kV distribution network[J].Power System Technology,2008,32(24):88-92. [11]郭俊宏,杨以涵,谭伟璞.中压配电网的故障测距实用化方法[J].电网技术,2006,30(8):76-80. Guo Junhong,Yang Yihan,Tan Weipu.A practical fauIt location method for medium voItage distribution network[J].Power System Technology,2006,30(8):76-80. [12]姚李孝,赵化时,柯丽芳,等.基于小波相关性的配电网单相接地故障测距[J].电力自动化设备,2010,30(1):71-75. Yao Lixiao,Zhao Huashi,Ke Lifang,et al.Single-phase grounding fault location based on wavelet correlation for distribution network[J].Electric Power Automation Equipment,2010,30(1):71-75. [13]梁睿,孙式想.单端行波故障测距的组合方法研究[J].电网技术,2013,37(3):699-706. Liang Rui,Sun Shixiang.A combined method for single-ended traveling wave fault location[J].Power System Technology,2013,37(3):699-706. [14]周聪聪,舒勤,韩晓言.基于线模行波突变的配电网单相接地故障测距方法[J].电网技术,2014,38(7):1973-1978. Zhou Congcong,Shu Qin,Han Xiaoyan.A single-phase earth fault location scheme for distribution network based on mutation of line mode traveling wave[J].Power System Technology,2014,38(7):1973-1978. [15]齐郑,郑朝,杨以涵.谐振接地系统单相接地故障区段定位方法[J].电力系统自动化,2010,34(9):77-80. Qi Zheng,Zheng Zhao,Yang Yihan.Research on method of single-phase-to-earth fault section location in neutral point resonant grounded system[J].Automation of Electric Power Systems,2010,34(9):77-80. [16]鄢素云,常广,王毅.配电网在线监测的故障定位方法[J].电力自动化设备,2008,28(12):98-100. Yan Suyun,Chang Guang,Wang Yi.Power distribution network fault locating by on-line detectors[J].Electric Power Automation Equipment,2008,28(12):98-100. [17]张林利,徐丙垠,薛永端,等.基于线电压和零模电流的小电流接地故障暂态定位方法[J].中国电机工程学报,2012,32(13):110-115. Zhang Linli,Xu Bingyin,Xue Yongduan,et al.Transient fault locating method based on line voltage and zero-mode current in non-solidly earthed network[J].Proceedings of the CSEE,2012,32(13):110-115. [18]Zhang Q C,Zhang Y,Song W N,et al.Transmission line fault location for single-phase-to-earth fault on nondirect-ground neutral system[J].IEEE Transactions on Power Delivery,1998,13(4):1086-1092. [19]王俊勇,张保会.中性点非直接接地系统的单相接地故障测距新算法[J].电力自动化设备,2000,20(3):8-11. Wang Junyong,Zhang Baohui.A new fault location algorithm for single-phase-to-earth fault in non-direct-grounding neutral system[J].Electric Power Automation Equipment,2000,20(3):8-11. [20]梁志瑞,穆毓,牛胜锁,等.一种小电流接地系统单相接地故障测距新方法[J].电力系统自动化,2009,33(5):66-70. Liang Zhirui,Mu Yu,Niu Shengsuo,et al.A new fault location method for single phase to ground faults in the small current neutral grounding system[J].Automation of Electric Power Systems,2009,33(5):66-70. [21]谭丹,杨洪耕,曲广龙.基于故障距离分布函数的配电网故障定位[J].电网技术,2012,36(10):119-124. Tan Dan,Yang Honggeng,Qu Guanglong.Fault location for distribution network based on fault distance distribution function[J].Power System Technology,2012,36(10):119-124. [22]张文海,肖先勇,汪颖.基于故障暂态信号及其衰减特征的配网单相接地故障测距[J].电力自动化设备,2013,33(3):46-52. Zhang Wenhai,Xiao Xianyong,Wang Ying.Grounding fault location of distribution network based on transient fault signal and its attenuation characteristics[J].Electric Power Automation Equipment,2013,33(3):46-52. [23]王铭,徐玉琴.基于小波变换和BP网络的非故障相暂态电流故障定位[J].电力自动化设备,2006,26(4):25-27. Wang Ming,Xu Yuqin.Fault locating using transient component of non-fault-phase based on wavelet analysis and BP neural network[J].Electric Power Automation Equipment,2006,26(4):25-27. [24]Huang W Y,Robert K.Equivalent circuits for an SLG fault distance evaluation by curve fitting in compensated distribution systems[J].IEEE Transactions on Power Delivery,2008,23(2):601-608.
2016, Vol. 31 
