计及FTU漏报和误报的配电网故障定位分层解析模型
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摘要
为了提高配电网故障定位在大面积通信故障下的容错性,以现有的配电网故障定位模型为基础,通过系统地计及馈线终端设备(FTU)漏报和误报,建立了配电网故障定位解析模型。为了提高模型的可行性,以故障矛盾假说为约束条件,将目标函数变量维度减小到3倍的节点数量;在分析配电网拓扑结构和工程设备配置的基础上,通过构建分层故障定位模型,进一步减小变量维度。此外,分层解析模型能够利用第2层的定位结果对第1层的定位结果进行校验,使故障定位更加精确。算例分析结果表明,计及FTU漏报和误报的分层解析模型不仅能够大幅地提高配电网故障定位的准确率和容错性,还能同步获取FTU漏报和误报的告警信息。
In order to improve the fault tolerance ability of distribution network fault location under large area communication fault,an analytical model for fault location of distribution network considering the missing and false positives of FTU( Feeder Terminal Unit) is built based on the existing fault location model of distribution network. In order to improve the feasibility of the model,the variable dimension of the objective function is reduced to three times the number of nodes under the constraint of the fault contradiction hypothesis. The variable dimension is further reduced through the construction of hierarchical fault location model based on the analysis of the distribution network topology and engineering equipment configuration. In addition,the hierarchical analytical model can use the fault location results of the second layer to verify the location results of the first layer,which makes the fault location more accurate. Analytical results show that the analytic hierarchical model considering the missing and false positives of FTU can not only greatly improve the accuracy and fault tolerance ability of fault location in distribution network,but also synchronously acquire the warning information of FTU for missing and false positives.
In order to improve the fault tolerance ability of distribution network fault location under large area communication fault,an analytical model for fault location of distribution network considering the missing and false positives of FTU( Feeder Terminal Unit) is built based on the existing fault location model of distribution network. In order to improve the feasibility of the model,the variable dimension of the objective function is reduced to three times the number of nodes under the constraint of the fault contradiction hypothesis. The variable dimension is further reduced through the construction of hierarchical fault location model based on the analysis of the distribution network topology and engineering equipment configuration. In addition,the hierarchical analytical model can use the fault location results of the second layer to verify the location results of the first layer,which makes the fault location more accurate. Analytical results show that the analytic hierarchical model considering the missing and false positives of FTU can not only greatly improve the accuracy and fault tolerance ability of fault location in distribution network,but also synchronously acquire the warning information of FTU for missing and false positives.
引文
[1]高孟友,徐丙垠,张新慧.基于故障电流幅值比较的有源配电网故障定位算法[J].电力自动化设备,2015,35(7):21-25.GAO Mengyou,XU Bingyin,ZHANG Xinhui. Fault location based on fault current amplitude comparison for active distribution network[J]. Electric Power Automation Equipment,2015,35(7):21-25.
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[13]郭文鑫,文福拴,廖志伟,等.计及保护和断路器误动与拒动的电力系统故障诊断解析模型[J].电力系统自动化,2009,33(24):6-10.GUO Wenxin,WEN Fushuan,LIAO Zhiwei,et al. An analytic model for power system fault diagnosis with malfunctions of protective relays and circuit breakers taken into account[J]. Automation of Electric Power Systems,2009,33(24):6-10.
[14]刘道兵,顾雪平,李海鹏.电网故障诊断的一种完全解析模型[J].中国电机工程学报,2011,31(34):85-92.LIU Daobing,GU Xueping,LI Haipeng. A complete analytic model for fault diagnosis of power systems[J]. Proceedings of the CSEE,2011,31(34):85-92.
[15]刘道兵,顾雪平,梁海平.电网故障诊断完全解析模型的解集评价与最优解求取[J].中国电机工程学报,2014,34(31):5668-5676.LIU Daobing,GU Xueping,LIANG Haiping. Solution evaluation and optimal solution discrimination of a complete analytical model for power system fault diagnosis[J]. Proceedings of the CSEE,2014,34(31):5668-5676.
[16]江雪晨,王大志,张翠玲.利用模型诊断降维的电网故障诊断完全解析方法[J].中国电机工程学报,2016,36(24):6371-6378.JIANG Xuechen,WANG Dazhi,ZHANG Cuiling. A complete analytic method for fault diagnosis of power systems based on model-based diagnosis for dimensionality reduction[J]. Proceedings of the CSEE,2016,36(24):6371-6378.
[17]肖伟栋,夏明超,唐念.考虑多DG接入的配电网区域保护新方案[J].电力系统保护与控制,2014,34(9):103-109.XIAO Weidong,XIA Mingchao,TANG Nian. A new regional protection scheme for distribution network considering the introduction of multi-DGs[J]. Power System Protection and Control,2014,34(9):103-109.
[18]李振兴,尹项根,张哲,等.有限广域继电保护系统的分区原则与实现方法[J].电力系统自动化,2010,34(19):48-52.LI Zhenxing,YIN Xianggen,ZHANG Zhe,et al. Zone division and implementation on limited wide area protection system[J]. Automation of Electric Power Systems,2010,34(19):48-52.
[2]胡伟,李勇,曹一家.基于LOF和SVM的智能配电网故障辨识方法[J].电力自动化设备,2016,36(6):7-12.HU Wei,LI Yong,CAO Yijia. Fault identification based on LOF and SVM for smart distribution network[J]. Electric Power Automation Equipment,2016,36(6):7-12.
[3]卫志农,何桦,郑玉平.配电网故障区问定位的高级遗传算法[J].中国电机工程学报,2002,22(4):127-130.WEI Zhinong,HE Hua,ZHENG Yuping. A refined genetic algorithm for the fault sections location[J]. Proceedings of the CSEE,2002,22(4):127-130.
[4]陈歆技,丁同奎,张钊.蚁群算法在配电网故障定位中的应用[J].电力系统自动化,2006,30(5):74-77.CHEN Xinji,DING Tongkui,ZHANG Zhao. Ant colony algorithm for solving fault location in distribution networks[J]. Automation of Electric Power Systems,2006,30(5):74-77.
[5]郭壮志,吴杰康.配电网故障区间定位的仿电磁学算法[J].中国电机工程学报,2010,30(13):34-40.GUO Zhuangzhi,WU Jiekang. Electromagnetism-like mechanism based fault section diagnosis for distribution network[J]. Proceedings of the CSEE,2010,30(13):34-40.
[6]关龙,刘志刚,何士玉,等.离散二进制粒子群算法在基于模型配电网故障诊断中的应用[J].电力自动化设备,2013,33(9):89-92.GUAN Long,LIU Zhigang,HE Shiyu,et al. Application of BPSO algorithm in model based fault diagnosis of distribution network[J].Electric Power Automation Equipment,2013,33(9):89-92.
[7]周湶,郑柏林,廖瑞金,等.基于粒子群和差分进化算法的含分布式电源配电网故障区段定位[J].电力系统保护与控制,2013,41(4):33-37.ZHOU Quan,ZHENG Bolin,LIAO Ruijin,et al. Fault-section location for distribution networks with DG based on a hybrid algorithm of particle swarm optimization and differential evolution[J]. Power System Protection and Control,2013,41(4):33-37.
[8]刘蓓,汪沨,陈春,等.和声算法在含DG配电网故障定位中的应用[J].电工技术学报,2013,28(5):280-284.LIU Bei,WANG Feng,CHEN Chun,et al. Harmony search algorithm for solving fault location in distribution networks with DG[J]. Transactions of China Electrotechnical Society,2013,28(5):280-284.
[9]郑涛,潘玉美,郭昆亚,等.基于免疫算法的配电网故障定位方法研究[J].电力系统保护与控制,2014,42(1):77-83.ZHENG Tao,PAN Yumei,GUO Kunya,et al. Fault location of distribution network based on immune algorithm[J]. Power System Protection and Control,2014,42(1):77-83.
[10]郭壮志,陈涛,洪俊杰,等.基于故障辅助因子的配电网高容错性故障区段定位方法[J].电力自动化设备,2017,37(7):93-100.GUO Zhuangzhi,CHEN Tao,HONG Junjie,et al. High-tolerance faulty section locating based on fault accessory factors for distribution network[J]. Electric Power Automation Equipment,2017,37(7):93-100.
[11]金涛,李鸿南,刘对.基于BPSOGA的含风电机组的配电线路故障区段定位[J].电力自动化设备,2016,36(6):27-33.JIN Tao,LI Hongnan,LIU Dui. Faulty section location based on BPSOGA for distribution line with wind turbine generator[J]. Electric Power Automation Equipment,2016,36(6):27-33.
[12]赵冬梅,张旭,魏娟,等.以重现故障过程为目的的电网故障诊断[J].中国电机工程学报,2014,34(13):2116-2123.ZHAO Dongmei,ZHANG Xu,WEI Juan,et al. Power grid fault diagnosis aiming at reproducing the fault process[J]. Proceedings of the CSEE,2014,34(13):2116-2123.
[13]郭文鑫,文福拴,廖志伟,等.计及保护和断路器误动与拒动的电力系统故障诊断解析模型[J].电力系统自动化,2009,33(24):6-10.GUO Wenxin,WEN Fushuan,LIAO Zhiwei,et al. An analytic model for power system fault diagnosis with malfunctions of protective relays and circuit breakers taken into account[J]. Automation of Electric Power Systems,2009,33(24):6-10.
[14]刘道兵,顾雪平,李海鹏.电网故障诊断的一种完全解析模型[J].中国电机工程学报,2011,31(34):85-92.LIU Daobing,GU Xueping,LI Haipeng. A complete analytic model for fault diagnosis of power systems[J]. Proceedings of the CSEE,2011,31(34):85-92.
[15]刘道兵,顾雪平,梁海平.电网故障诊断完全解析模型的解集评价与最优解求取[J].中国电机工程学报,2014,34(31):5668-5676.LIU Daobing,GU Xueping,LIANG Haiping. Solution evaluation and optimal solution discrimination of a complete analytical model for power system fault diagnosis[J]. Proceedings of the CSEE,2014,34(31):5668-5676.
[16]江雪晨,王大志,张翠玲.利用模型诊断降维的电网故障诊断完全解析方法[J].中国电机工程学报,2016,36(24):6371-6378.JIANG Xuechen,WANG Dazhi,ZHANG Cuiling. A complete analytic method for fault diagnosis of power systems based on model-based diagnosis for dimensionality reduction[J]. Proceedings of the CSEE,2016,36(24):6371-6378.
[17]肖伟栋,夏明超,唐念.考虑多DG接入的配电网区域保护新方案[J].电力系统保护与控制,2014,34(9):103-109.XIAO Weidong,XIA Mingchao,TANG Nian. A new regional protection scheme for distribution network considering the introduction of multi-DGs[J]. Power System Protection and Control,2014,34(9):103-109.
[18]李振兴,尹项根,张哲,等.有限广域继电保护系统的分区原则与实现方法[J].电力系统自动化,2010,34(19):48-52.LI Zhenxing,YIN Xianggen,ZHANG Zhe,et al. Zone division and implementation on limited wide area protection system[J]. Automation of Electric Power Systems,2010,34(19):48-52.