基于缺相耦合电压特性的同杆双回线路非跨线故障综合重合闸策略
|
摘要
常规同杆双回线路重合闸策略由于三相抵消原理,其故障相存在的互感电气量非常小,容易受到线路干扰造成误判,重合于永久性故障。提出了一种适用于接地故障的基于缺相耦合电压特性的故障性质判据及综合重合闸策略,对健全线进行了缺相处理,增大了故障线耦合电气量幅值,并增加了非跨线接地故障性质的识别准确度。为使该策略适用于同杆双回线路相间故障和三相故障性质判别,提出在线路装设接地开关的方案,实现了对非跨线非接地故障的快速准确识别。在PSCAD/EMTDC平台上构建仿真模型,验证了该重合闸策略的可行性。
Considering three-phase neutralization, electric quantities left in faulty phases after three-phase tripping of one line in a double-circuit transmission line are not big enough, which could cause misjudgments to the conventional adaptive reclosing schemes of double-circuit transmission lines, and make the lines reclose to permanent faults. To solve the problem mentioned above, a fault characteristic identification method for grounding faults and the relevant comprehensive adaptive reclosing scheme are established, which increases the magnitude of the coupled electric quantities by conducting open-phase measure on the sound line, and improves the accuracy of non-line-to-line grounding fault characteristic. In order to make the identification method and reclosing scheme adapt to non-grounding faults, a grounding switch accessing method is proposed to identify the non-line-to-line non-grounding fault characteristic rapidly. A simulation model is built in the software PSCAD/EMTDC, and the feasibility of the proposed adaptive reclosing scheme is verified by the simulation results.
Considering three-phase neutralization, electric quantities left in faulty phases after three-phase tripping of one line in a double-circuit transmission line are not big enough, which could cause misjudgments to the conventional adaptive reclosing schemes of double-circuit transmission lines, and make the lines reclose to permanent faults. To solve the problem mentioned above, a fault characteristic identification method for grounding faults and the relevant comprehensive adaptive reclosing scheme are established, which increases the magnitude of the coupled electric quantities by conducting open-phase measure on the sound line, and improves the accuracy of non-line-to-line grounding fault characteristic. In order to make the identification method and reclosing scheme adapt to non-grounding faults, a grounding switch accessing method is proposed to identify the non-line-to-line non-grounding fault characteristic rapidly. A simulation model is built in the software PSCAD/EMTDC, and the feasibility of the proposed adaptive reclosing scheme is verified by the simulation results.
引文
[1]林达,王庆庆,王慧芳,等.带并联电抗器同杆双回线自适应重合闸方案[J].电力系统自动化,2015,39(6):101-106.LIN Da,WANG Qingqing,WANG Huifang,et al.Adaptive reclosure scheme for parallel lines with shunt reactors[J].Automation of Electric Power Systems,2015,39(6):101-106.
[2]易强,周浩,计荣荣,等.同塔双回特高压线路潜供电流和恢复电压的限制[J].电力系统自动化,2011,35(10):83-88.YI Qiang,ZHOU Hao,JI Rongrong,et al.Restriction on secondary arc current on ultra-high voltage AC double circuit transmission lines on the same tower[J].Automation of Electric Power Systems,2011,35(10):83-88.
[3]程琳,王瑞,程琳,等.两端带并联电抗器的同杆双回线路故障性质判别方法研究[J].陕西电力,2016,44(5):64-68.CHENG Lin,WANG Rui,CHENG Lin,et al.Method to identify faults properties for common-tower double-circuit transmission lines with shunt reactors[J].Shaanxi Electric Power,2016,44(5):64-68.
[4]沈军,张哲,郑玉平,等.500 kV同杆双回线自适应重合闸方案[J].电力设备,2006,7(1):20-23.SHEN Jun,ZHANG Zhe,ZHENG Yuping,et al.Adaptive reclosing scheme of 500 k V double circuit lines on the same tower[J].Electrical Equipment,2006,7(1):20-23.
[5]刘家军,梁振锋,张欣伟,等.同杆平行双回线路按相重合闸新方案[J].电力系统保护与控制,2009,37(5):22-25.LIU Jiajun,LIANG Zhenfeng,ZHANG Xinwen,et al.New scheme on reclosing phase by phase for double-circuit transmission lines on the same tower[J].Power System Protection and Control,2009,37(5):22-25.
[6]齐亮,李永丽,李博通,等.同杆双回线跨线故障最优跳闸方案[J].电力系统自动化,2008,32(23):62-66.QI Liang,LI Yongli,LI Botong,et al.Optimal trip schemes of double-circuit lines on the same tower for crossing-line faults[J].Automation of Electric Power Systems,2008,32(23):62-66.
[7]GOPAKUMAR P,MALLIKAJUNA B,REDDY M J B,et al.Remote monitoring system for real time detection and classification of transmission line faults in a power grid using PMU measurements[J].Protection and Control of Modern Power Systems,2018,3(3):159-168.DOI:10.1186/s41601-018-0089-x.
[8]解超,李凤婷,王彦鸱,等.基于高频信号的输电线路主动式保护[J].电力系统保护与控制,2017,45(7):6-12.XIE Chao,LI Fengting,WANG Yanchi,et al.An active protection of transmission line based on high-frequency signal[J].Power System Protection and Control,2017,45(7):6-12.
[9]费春国,李春信.基于电压振幅和支持向量回归机的高压电力输电线故障定位[J].电力系统保护与控制,2018,46(13):27-32.FEI Chunguo,LI Chunxin.Fault location in high voltage power transmission based on voltage amplitude and support vector regression[J].Power System Protection and Control,2018,46(13):27-32.
[10]梁振锋,崔若巍,杨宁宁,等.三相不对称输电线路单相自适应重合闸的研究[J].电力系统保护与控制,2018,46(8):31-36.LIANG Zhenfeng,CUI Ruowei,YANG Ningning,et al.Study on single-phase adaptive reclosure of the asymmetrical three-phase transmission lines[J].Power System Protection and Control,2018,46(8):31-36.
[11]梁振锋,索南加乐,宋国兵,等.输电线路自适应重合闸研究综述[J].电力系统保护与控制,2013,41(6):140-147.LIANG Zhenfeng,SUONAN Jiale,SONG Guobing,et al.Research review of adaptive reclosure in transmission lines[J].Power System Protection and Control,2013,41(6):140-147.
[12]宋国兵,索南加乐,孙丹丹.输电线路永久性故障判别方法综述[J].电网技术,2006,30(18):75-80.SONG Guobing,SUONAN Jiale,SUN Dandan.A survey on methods to distinguish permanent faults from instantaneous faults in transmission lines[J].Power System Technology,2006,30(18):75-80.
[13]李博通,李永丽.同杆双回线跨线永久性故障识别方法[J].电力系统自动化,2012,36(3):87-91.LI Botong,LI Yongli.Method for identifying permanent cross-line fault of double-circuit transmission line on the same tower[J].Automation of Electric Power Systems,2012,36(3):87-91.
[14]刘毅,张哲,尹项根,等.同杆并架双回线自适应重合闸组合判据[J].电力系统自动化,2011,35(2):56-61.LIU Yi,ZHANG Zhe,YIN Xianggen,et al.An combination criterion on adaptive reclosure for double transmission lines[J].Automation of Electric Power Systems,2011,35(2):56-61.
[15]王增平,刘浩芳,徐岩,等.基于改进型相关法的单相自适应重合闸新判据[J].中国电机工程学报,2007,27(10):49-55.WANG Zengping,LIU Haofang,XU Yan,et al.A new criterion for single-phase adaptive automatic reclosure based on improved correlation algorithm[J].Proceedings of the CSEE,2007,27(10):49-55.
[16]陈禾,陈维贤.超、特高压输电线路中潜供电流的电路分析和计算[J].高电压技术,2010,36(10):2368-2373.CHEN He,CHEN Weixian.Circuit analysis and computation of secondary current in EHV and UHVtransmission lines[J].High Voltage Engineering,2010,36(10):2368-2373.
[17]王月林,李凤婷,辛超山.风电场联络线非全相运行时的恢复电压研究[J].中国电力,2016,49(8):93-98.WANG Yuelin,LI Fengting,XIN Chaoshan.Research on the recovery voltage of wind farm tie line during open-phase operation[J].Electric Power,2016,49(8):93-98.
[18]NAGPAL M,MANUEL S H,BELL B E,et al.Field verification of secondary arc extinction logic[J].IEEETransactions on Power Delivery,2016,31(4):1864-1872.
[19]赵庆明,李斌.基于电压补偿原理的单相自适应重合闸新型相位判据[J].电力系统保护与控制,2010,38(13):50-54.ZHAO Qingming,LI Bin.A new phase criterion for single-pole adaptive reclosure based on voltage compensation[J].Power System Protection and Control,2010,38(13):50-54.
[20]商立群,施围.同杆双回输电线路的潜供电流与恢复电压[J].高电压技术,2003,29(10):22-23.SHANG Liqun,SHI Wei.Study on secondary arc current and recovery voltage on double-circuit lines on the same pole[J].High Voltage Engineering,2003,29(10):22-23.
[2]易强,周浩,计荣荣,等.同塔双回特高压线路潜供电流和恢复电压的限制[J].电力系统自动化,2011,35(10):83-88.YI Qiang,ZHOU Hao,JI Rongrong,et al.Restriction on secondary arc current on ultra-high voltage AC double circuit transmission lines on the same tower[J].Automation of Electric Power Systems,2011,35(10):83-88.
[3]程琳,王瑞,程琳,等.两端带并联电抗器的同杆双回线路故障性质判别方法研究[J].陕西电力,2016,44(5):64-68.CHENG Lin,WANG Rui,CHENG Lin,et al.Method to identify faults properties for common-tower double-circuit transmission lines with shunt reactors[J].Shaanxi Electric Power,2016,44(5):64-68.
[4]沈军,张哲,郑玉平,等.500 kV同杆双回线自适应重合闸方案[J].电力设备,2006,7(1):20-23.SHEN Jun,ZHANG Zhe,ZHENG Yuping,et al.Adaptive reclosing scheme of 500 k V double circuit lines on the same tower[J].Electrical Equipment,2006,7(1):20-23.
[5]刘家军,梁振锋,张欣伟,等.同杆平行双回线路按相重合闸新方案[J].电力系统保护与控制,2009,37(5):22-25.LIU Jiajun,LIANG Zhenfeng,ZHANG Xinwen,et al.New scheme on reclosing phase by phase for double-circuit transmission lines on the same tower[J].Power System Protection and Control,2009,37(5):22-25.
[6]齐亮,李永丽,李博通,等.同杆双回线跨线故障最优跳闸方案[J].电力系统自动化,2008,32(23):62-66.QI Liang,LI Yongli,LI Botong,et al.Optimal trip schemes of double-circuit lines on the same tower for crossing-line faults[J].Automation of Electric Power Systems,2008,32(23):62-66.
[7]GOPAKUMAR P,MALLIKAJUNA B,REDDY M J B,et al.Remote monitoring system for real time detection and classification of transmission line faults in a power grid using PMU measurements[J].Protection and Control of Modern Power Systems,2018,3(3):159-168.DOI:10.1186/s41601-018-0089-x.
[8]解超,李凤婷,王彦鸱,等.基于高频信号的输电线路主动式保护[J].电力系统保护与控制,2017,45(7):6-12.XIE Chao,LI Fengting,WANG Yanchi,et al.An active protection of transmission line based on high-frequency signal[J].Power System Protection and Control,2017,45(7):6-12.
[9]费春国,李春信.基于电压振幅和支持向量回归机的高压电力输电线故障定位[J].电力系统保护与控制,2018,46(13):27-32.FEI Chunguo,LI Chunxin.Fault location in high voltage power transmission based on voltage amplitude and support vector regression[J].Power System Protection and Control,2018,46(13):27-32.
[10]梁振锋,崔若巍,杨宁宁,等.三相不对称输电线路单相自适应重合闸的研究[J].电力系统保护与控制,2018,46(8):31-36.LIANG Zhenfeng,CUI Ruowei,YANG Ningning,et al.Study on single-phase adaptive reclosure of the asymmetrical three-phase transmission lines[J].Power System Protection and Control,2018,46(8):31-36.
[11]梁振锋,索南加乐,宋国兵,等.输电线路自适应重合闸研究综述[J].电力系统保护与控制,2013,41(6):140-147.LIANG Zhenfeng,SUONAN Jiale,SONG Guobing,et al.Research review of adaptive reclosure in transmission lines[J].Power System Protection and Control,2013,41(6):140-147.
[12]宋国兵,索南加乐,孙丹丹.输电线路永久性故障判别方法综述[J].电网技术,2006,30(18):75-80.SONG Guobing,SUONAN Jiale,SUN Dandan.A survey on methods to distinguish permanent faults from instantaneous faults in transmission lines[J].Power System Technology,2006,30(18):75-80.
[13]李博通,李永丽.同杆双回线跨线永久性故障识别方法[J].电力系统自动化,2012,36(3):87-91.LI Botong,LI Yongli.Method for identifying permanent cross-line fault of double-circuit transmission line on the same tower[J].Automation of Electric Power Systems,2012,36(3):87-91.
[14]刘毅,张哲,尹项根,等.同杆并架双回线自适应重合闸组合判据[J].电力系统自动化,2011,35(2):56-61.LIU Yi,ZHANG Zhe,YIN Xianggen,et al.An combination criterion on adaptive reclosure for double transmission lines[J].Automation of Electric Power Systems,2011,35(2):56-61.
[15]王增平,刘浩芳,徐岩,等.基于改进型相关法的单相自适应重合闸新判据[J].中国电机工程学报,2007,27(10):49-55.WANG Zengping,LIU Haofang,XU Yan,et al.A new criterion for single-phase adaptive automatic reclosure based on improved correlation algorithm[J].Proceedings of the CSEE,2007,27(10):49-55.
[16]陈禾,陈维贤.超、特高压输电线路中潜供电流的电路分析和计算[J].高电压技术,2010,36(10):2368-2373.CHEN He,CHEN Weixian.Circuit analysis and computation of secondary current in EHV and UHVtransmission lines[J].High Voltage Engineering,2010,36(10):2368-2373.
[17]王月林,李凤婷,辛超山.风电场联络线非全相运行时的恢复电压研究[J].中国电力,2016,49(8):93-98.WANG Yuelin,LI Fengting,XIN Chaoshan.Research on the recovery voltage of wind farm tie line during open-phase operation[J].Electric Power,2016,49(8):93-98.
[18]NAGPAL M,MANUEL S H,BELL B E,et al.Field verification of secondary arc extinction logic[J].IEEETransactions on Power Delivery,2016,31(4):1864-1872.
[19]赵庆明,李斌.基于电压补偿原理的单相自适应重合闸新型相位判据[J].电力系统保护与控制,2010,38(13):50-54.ZHAO Qingming,LI Bin.A new phase criterion for single-pole adaptive reclosure based on voltage compensation[J].Power System Protection and Control,2010,38(13):50-54.
[20]商立群,施围.同杆双回输电线路的潜供电流与恢复电压[J].高电压技术,2003,29(10):22-23.SHANG Liqun,SHI Wei.Study on secondary arc current and recovery voltage on double-circuit lines on the same pole[J].High Voltage Engineering,2003,29(10):22-23.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |