基于微型PMU的配电网多分支架空线路参数无关故障定位算法Parameter-free Fault Location Algorithm for Multi-terminal Overhead Transmission Line of Distribution Network Based on μMPMU
王成斌;贠志皓;张恒旭;石访;凌平;谢邦鹏;
摘要(Abstract):
随着分布式电源以分支线形式大量接入配电网,多分支线故障定位算法在有效性和准确性上面临着重大的挑战。为减少线路参数不准确引起的定位误差,提出了一种新型线路参数无关故障定位算法。此方法仅利用故障后线路各端电压电流的同步测量值和线路长度,无需知道各条线路参数,根据故障点和分接点处由相邻节点电气量推算的电压相等的原理构建测距方程组。算法假设故障发生在各区段,分别列写相应测距方程组,并通过信赖域算法分别求解各组方程中的故障距离、分接点位置、各线路单位长度阻抗参数,最后根据各组解是否合理直接判断故障位置。MATLAB/Simulink仿真结果表明,此算法具有较高的精度,基本不受线路参数、故障位置、过渡电阻、非对称故障类型的影响。
关键词(KeyWords): 配电网;故障定位;多分支线路;参数无关
基金项目(Foundation): 国家重点研发计划项目(2017YFB0902800);; 国家电网公司科技项目(SGTYHT/16-JS-198)~~
作者(Author): 王成斌;贠志皓;张恒旭;石访;凌平;谢邦鹏;
Email:
DOI: 10.13335/j.1000-3673.pst.2018.2733
参考文献(References):
- [1] Mahamedi B,Sanaye-Pasand M,Azizi S,et al.Unsynchronised fault-location technique for three-terminal line[J].IET Generation,Transmission and Distribution,2015,9(15):2099-2107.
- [2]张峰,梁军,杜涛,等.T型线路的行波精确故障测距新方法[J].高电压技术,2009,35(3):527-532.Zhang Feng,Liang Jun,Du Tao,et al.Accurate fault location algorithm based on traveling waves for teed-circuits[J].High Voltage Engineering,2009,35(3):527-532(in Chinese).
- [3]周鑫,吕飞鹏,吴飞,等.基于小波变化的T型线路故障测距新算法[J].电力系统保护与控制,2010,38(2):8-11,33.Zhou Xin,LüFeipeng,Wu Fei,et al.A new fault location method for T-connection transmission lines[J].Power System Protection and Control,2010,38(2):8-11,33(in Chinese).
- [4]陈旭,朱永利,赵雪松,等.考虑线路长度变化的T型线路行波测距[J].电网技术,2015,39(5):1438-1443.Chen Xu,Zhu Yongli,Zhao Xuesong,et al.Traveling wave fault location for T-shaped transmission line considering change of line length[J].Power System Technology,2015,39(5):1438-1443(in Chinese).
- [5]杨晓丽,舒勤.基于单-双端行波测距原理的配网多端故障定位[J].电力系统及其自动化学报,2018,30(4):91-96.Yang Xiaoli,Shu Qin.Distribution network fault location based on single-and double-end traveling wave distance measurement principle[J].Proceedings of the CSU-EPSA,2018,30(4):91-96(in Chinese).
- [6]徐岩,应璐曼,刘泽锴.大电网下基于故障域的PMU配置和故障定位新方法[J].电网技术,2014,38(11):3206-3212.Xu Yan,Ying Luman,Liu Zekai.A new fault area based method of PMU configuration and fault location for large power grid[J].Power System Technology,2014,38(11):3206-3212(in Chinese).
- [7] Pignati M,Zanni L,Romano P,et al.Fault detection and faulted line identification in active distribution networks using synchrophasorsbased real-time state estimation[J].IEEE Transactions on Power Delivery,2017,32(1):381-392.
- [8]许寅,王思家,吴翔宇,等.基于同步相量测量的配电网孤岛多源协同控制方法[J].电网技术,2019,43(3):872-880.Xu Yin,Wang Sijia,Wu Xiangyu,et al.Multi-source coordinated control method based on PMU for islanded distribution network[J].Power System Technology,2019,43(3):872-880(in Chinese).
- [9] Von Meier A,Stewart E,McEachern A,et al.Precision microsynchrophasors for distribution systems:a summary of applications[J].IEEE Transactions on Smart Grid,2017,8(6):2926-2936.
- [10]束洪春,高峰,陈学允,等.T型输电系统故障测距算法研究[J].中国电机工程学报,1998,18(6):416-420. Shu Hongchun,Gao Feng,Chen Xueyun,et al.A study on accurate fault location algorithm of EHV T-connection to three terminals[J].Proceedings of the CSEE,1998,18(6):416-420(in Chinese).
- [11]高厚磊,安艳秋,江世芳.超高压T接线路高精度故障测距算法研究[J].电力系统自动化,2001,25(20):41-44.Gao Houlei,An Yanqiu,Jiang Shifang.Study on accurate fault location algorithm for EHV teed lines[J].Automation of Electric Power Systems,2001,25(20):41-44(in Chinese).
- [12]陈旭,朱永利,高艳丰,等.基于故障分支快速辨识的T型高压输电线路故障定位新算法[J].电力系统自动化,2016,40(4):105-110.Chen Xun,Zhu Yongli,Gao Yanfeng,et al.A new fault location algorithm for high-voltage three-terminal transmission lines based on fault branch fast identification[J].Automation of Electric Power Systems,2016,40(4):105-110(in Chinese).
- [13]田羽,范春菊,龚震东.三侧同杆双回线互联的T型线路测距新方法[J].电力自动化设备,2007,27(9):63-66.Tian Yu,Fan Chunju,Gong Zhendong.Fault locating algorithm for T-type lines with parallel transmission lines on same pole at three sides[J].Electric Power Automation Equipment,2007,27(9):63-66(in Chinese).
- [14]施世鸿,何奔腾,张武军.T型高压输电线路故障测距[J].中国电机工程学报,2008,28(25):105-110.Shi Shihong,He Benteng,Zhang Wujun.Fault location for HV threeterminal transmission lines[J].Proceedings of the CSEE,2008,28(25):105-110(in Chinese).
- [15]林富洪,王增平,曾惠敏.基于测距函数相位特性的T型高压线路故障定位原理[J].中国电机工程学报,2011,31(13):107-113.Lin Fuhong,Wang Zengping,Zeng Huimin.A novel fault location algorithm based on phase characteristics of fault location function for three-terminal transmission lines[J].Proceedings of the CSEE,2011,31(13):107-113(in Chinese).
- [16] Abe M,Otsuzuki N,Emura T,et al.Development of a new fault location system for multi-terminal single transmission lines[J].IEEE Transactions on Power Delivery,1995,10(1):159-168.
- [17] Girgis A A,Hart D G,Peterson W L.A new fault location technique for two-and three-terminal lines[J].IEEE Transactions on Power Delivery,1992,7(1):98-107.
- [18]王波,周昱勇.基于PMU的多端传输线路故障定位新方法[J].电力系统保护与控制,2009,37(12):32-35,39.Wang Bo,Zhou Yuyong.A novel PMU-based fault location algorithm for multi-terminal transmission line[J].Power System Protection and Control,2009,37(12):32-35,39(in Chinese).
- [19]王增平,林富洪.基于同步相量测量的N端输电线路故障测距新算法[J].电网技术,2010,34(5):154-160.Wang Zengping,Lin Fuhong.A new fault locating algorithm for N-terminal transmission lines based on synchronized phasor measurement[J].Power System Technology,2010,34(5):154-160(in Chinese).
- [20] Jiang Q Y,Wang B,Li X P.An efficient PMU-based fault-location technique for multiterminal transmission lines[J].IEEE Transactions on Power Delivery,2014,29(4),1675-1682.
- [21]顾伟,王波.适于多分支输电线路的故障支路判别算法[J].电力系统及其自动化学报,2012,24(3):127-133.Gu Wei, Wang Bo. Fault section discrimination algorithm for transmission line with multi-tapped legs[J].Proceedings of the CSUEPSA,2012,24(3):127-133(in Chinese).
- [22] Liu C W,Lien K P,Chen C S,et al.A universal fault location technique for N-terminal(N-3)transmission lines[J]. IEEE Transactions on Power Delivery,2008,23(3):1366-1373.
- [23] Manassero Jr G,Senger E C,Nakagomi R M,et al.Fault-location system for multiterminal transmission lines[J].IEEE Transactions on Power Delivery,2010,25(3):1418-1426.
- [24] Ngu E E,Ramar K.A combined impedance and traveling wave based fault location method for multi-terminal transmission lines[J].International Journal of Electrical Power and Energy Systems,2011,11(10):1767-1775.
- [25] Hussain S,Osman A H.Fault location scheme for multi-terminal transmission lines using unsynchronized measurements[J].International Journal of Electrical Power and Energy Systems,2016(78):277-284.
- [26] Asprou M,Kyriakides E.Identification and estimation of erroneous transmission line parameters using PMU measurements[J].IEEE Transactions on Power Delivery,2017,32(6):2510-2519.
- [27] Liao Y,Elangovan S.Unsynchronised two-terminal transmission-line fault-location without using line parameters[J].IEE Proceedings:Generation,Transmission and Distribution,2006,153(6):639-643.
- [28] Elkalashy N I,Kawady T A,Khater W M,et al.Unsynchronized fault-location technique for double-circuit transmission systems independent of line parameters[J]. IEEE Transactions on Power Delivery,2016,31(4):1591-1600.
- [29] Davoudi M,Sadeh J,Kamyad E.Parameter-free fault location for transmission lines based on optimization[J]. IET Generation,Transmission and Distribution,2015,9(11):1061-1068.
- [30] Davoudi M,Sadeh J,Kamyad E.Transient-based fault location on three-terminal and tapped transmission lines not requiring line parameters[J].IEEE Transactions on Power Delivery,2018,33(1):179-188.
- [31]王小君,任欣玉,和敬涵,等.基于μPMU相量信息的配电网络故障测距方法[J].电网技术,2019,43(3):810-818.Wang Xiaojun,Ren Xinyu,He Jinghan,et al.Distribution network fault location based onμPMU information[J]. Power System Technology,2019,43(3):810-818(in Chinese).
- [32]陶维青,祝鑫,方陈,等.配电网相量数据集中器主要指标及测试方法[J].电网技术,2019,43(3):801-809.Tao Weiqing,Zhu Xin,Fang Chen,et al.Research on main indicators and test methods of distribution network phasor concentrator[J].Power System Technology,2019,43(3):801-809(in Chinese).
- [33] Abdelaziz M M A,Farag H E,EI-Saadany E F,et al.A novel and generalized three-phase power flow algorithm for islanded microgrids using a newton trust region method[J].IEEE Transactions on Power Systems,2013,28(1):190-201.