配电网单相接地故障在线定位的研究与实现
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摘要
随着经济的发展,用户对配电网供电可靠性要求的不断提高,可运用成熟的选线技术选出故障线路,不停止对故障线路供电,在故障线路带电情况下进行故障定位操作,即在线故障定位法。单相永久接地故障发生后,故障线路可以带负荷运行两个小时。基于此,本文提出了一种基于GPS和无线模块nRF2401的在线故障定位方法,主要做了四方面的工作:分析了在线故障定位方法的原理;设计了基于GPS的单相接地故障在线定位系统;设计并实现了零序电流相位探测器;通过模拟实验方法验证了该方法的有效性。
本文提出的在线故障定位方法,只适用于中性点不接地系统,还不能应用于其它小电流接地系统。基于GPS在线故障定位方法是一种很有效的方法。
With the continuous development of the economics, the customer demand for reliable power supplies is increasing. Under such circumstances ,the staff can select the fault line using the mature line selection techniques, keep up power supply for fault line, and search for the point of failure in the case of continued power supply, that is the on-line location method. As the single-phase permanent ground fault occurred, fault line could run for two hours with load. Based on this, an on-line fault location method based on GPS and wireless module nRF2401 is proposed ,and four aspects of work have been done in this paper: principle of on-line fault location is analyzed; schematic diagram of single-phase ground fault system is developed; zero-sequence current phase detector is designed and realized. proved the presented method correct and effective by experiment.
The on-line fault location method is proposed in this paper, which applies only to non-grounded neutral system. In other small current grounding system, the method can not be applied. The on-line fault location method based on GPS is a very effective way.
本文提出的在线故障定位方法,只适用于中性点不接地系统,还不能应用于其它小电流接地系统。基于GPS在线故障定位方法是一种很有效的方法。
With the continuous development of the economics, the customer demand for reliable power supplies is increasing. Under such circumstances ,the staff can select the fault line using the mature line selection techniques, keep up power supply for fault line, and search for the point of failure in the case of continued power supply, that is the on-line location method. As the single-phase permanent ground fault occurred, fault line could run for two hours with load. Based on this, an on-line fault location method based on GPS and wireless module nRF2401 is proposed ,and four aspects of work have been done in this paper: principle of on-line fault location is analyzed; schematic diagram of single-phase ground fault system is developed; zero-sequence current phase detector is designed and realized. proved the presented method correct and effective by experiment.
The on-line fault location method is proposed in this paper, which applies only to non-grounded neutral system. In other small current grounding system, the method can not be applied. The on-line fault location method based on GPS is a very effective way.
引文
[1]冯宝玥.中压电网中性点接地方式的研究:[硕士学位论文].济南:山东大学,2006
[2]戚宇林,成艳,杨以涵. 35 kV配电网单相接地故障综合定位方法.电网技术,2008,32(10):38～42
[3]李润先.中压电网系统接地实用技术.北京:中国电力出版社,2002,9～79
[4]束洪春.配电网络故障选线.北京:机械工业出版社,2008,1～23
[5]李景禄.实用配电网技术.北京:中国水利水电出版社,2006,99～136
[6]刘家军,李春举,李文玲.在故障测距中应用故障分量电流的阻抗法研究.电气化铁道,2003,(5):1～4
[7]陈伟强.基于概率分析的高阻接地故障检测新方法.沈阳工程学院学报,2007,3(4):342～346
[8]夏长根.配电线路单相接地故障行波定位技术的研究: [硕士学位论文].北京:华北电力大学,2005
[9] Qi Zheng, Yang Yihan, Ma Qian, Zhu Xukai. Study on C-traveling wave fault location in neutral point non-effectively grounded system. In:2004 International Conference on Power System Technology, POWERCON 2004,2004.205～209
[10]严凤.中性点非有效接地系统单相接地行波定位方法的研究:[博士学位论文].北京:华北电力大学,2003
[11] Huang Jingguang, Liu Huijia, Hu Hanmei, Lu Yanping. Distribution Grid Earth Fault Line Detection Study by Traveling Wave Wavelets Coefficient Maximum Polarities. In: High Voltage Engineering, 2006. 100～104
[12]蔡秀雯.配电网行波故障定位技术的研究:[硕士学位论文].北京:华北电力大学,2007
[13]朱艳伟.配电网单相接地故障定位S信号法的研究与改进:[硕士学位论文].保定:华北电力大学,2007
[14]王凤.配电系统接地故障的信号注入检测法的分析与研究:[硕士学位论文].保定:华北电力大学,2007.
[15]王凤,康怡.基于脉冲信号注入法的小电流接地选线技术.电网技术,2008,32(15):90～93
[16] Yu-lin Qi,Yan-wei Zhu. Application of signal generator based on reducing work frequency S’s signal injection method in distribution network. In: Proceedings of the second international conference on intelligent information management system and technology,2007. 323～326
[17]徐容明.一种基于故障指示器的配电线路故障自动定位系统.电力设备,2005,6(10):66～67
[18]伊贵业,杨学昌,吴振升.用在线监测器的配电网故障定位方法.清华大学学报(自然科学版),2000,40(7):35～38
[19]张利,杨以涵,司冬梅,杨鹏,齐超.基于零序电流和磁场检测故障杆的配电网故障定位.电力系统自动化,2008,32(14):16～20
[20] Zeng Xiangjun, Yin Xianggen, Zhang Zhe ,et al. Study on feeder Grounding fault protection based on zero sequence admittance. In: Proceedings of the CSEE(in China) ,2001. 5～10
[21]杨鹏,杨以涵,司冬梅,等.配电网单相接地故障定位技术实验研究.电力系统自动化,2008,32(9):104～107
[22] Elhaffar A, Lehtonen M. An improved GPS current traveling-wave fault locator in EHV transmission networks using few recordings. In: Future Power System, 2005 .16～18
[23]戚宇林.中压配电网单相接地故障定位的研究与实现:[博士学位论文].保定:华北电力大学,2007
[24]贾清泉.非有效接地电网选线保护技术.北京:国防工业出版社,2007. 1～19
[25]张庆超,杨金飞.基于两相电流变换的小电流接地系统故障选线新方法.电力系统自动化,2007,31(8):75～79
[26] Wang Yansong,Chen Guoming,Lu Yanping,Zhang Mengmeng. Novel algorithm of fault line selection based on wavelet packet for single-phase to ground fault in distribution networks .In: High Voltage Engineering ,2005.78～90
[27]张帆,潘贞存,张慧芬.基于零序电流暂态极大值的小电流接地选线新判据.电力系统自动化,2006,30(4):45～48
[28]张新慧,潘贞存,徐丙垠,薛永端.基于暂态零序电流的小电流接地故障选线仿真.继电器,2008,36(3):5～9
[29] Ma Hongjiang, Zeng Xiangjun, Member, IEEE, Wang Yuanyuan, Li Zewen. Grounding Fault Protection with Fault Resistance Measuring for Ineffectively Ground Power Systems. In: IEEE/PES Transmission and Distribution Conference & Exhibition in Asia and Pacific Dalian, 2005. 15～18
[30]张献功.应用GPS接收板研制高精度自守时时钟.机电工程技术,2006,35(3):62～63
[31]孙丙香,温春雪,严国志,杨同忠.GPS精密授时功能在电力系统功角广域测量系统中的应用.国外电子元器件,2006,(1):53～56
[32] Elhaffar A, Lehtonen M. An improved GPS current traveling-wave fault locator in EHV transmission networks using few recordings. In: Future Power System, 2005. 16～18
[32]董剑利,周丹.通用GPS授时同步监控系统的设计与实现.计算机工程与设计,2007 ,28(12):2006～3008
[33] nRF2401Datasheet[ DB/OL ].http://www.freqchina.com
[34]丁永红,孙运强.基于nRF2401的无线数传系统设计.研究与开发,2008,27(4):45～47
[35]王静爽,李新永,曹尔晔.基于分散式信号采集的小电流选线装置.电力系统自动化,2007,31(16):92～93
[36] Jan Izykowski, Rafal Molag, Eugeniusz Rosolowski, et al. Accurate location of faults on power transmission lines with use of two-end unsynchronized measurements. In: IEEE Transactions on Power Delivery, 2006.627～633
[37]吴春林,李翔,江明,陈其工.小电流接地选线中交流信号的采集与处理.机电工程,2007,24(2):5～7
[38] C8051F310Datasheet. http://www.21ic.com
[39] UAF42 Datasheet. http://www.21ic.com
[40]张丽敏.基于UAF42通用有源滤波器的设计.内蒙古电大学刊,2002,(1):97～98
[41] LF347 Datasheet. http://www.21ic.com
[42] LM339D Datasheet. http://www.21ic.com
[43]魏伟.GPS数据采集及动态显示系统的研究与实现.青岛远洋船员学院学报,2008,29(2):4～6
[44]陈丽娟,常丹华.基于nRF2401芯片的无线数据通信.电子器件,2006,29(1):248～250
[45]樊祥现,袁平.nRF2401无线通信数据传输可靠性技术应用.自动化技术与应用,2008,27(7):71～73
[46] Darren Spoor, Jian Guo Zhu. Improved single-ended traveling-wave fault-location algorithm based on experience with conventional substation transducers. In: Power Delivery, 2006.1714～1720
[47]邢文生,李希臣.nRF2401的ShockBurstTM模式及其单片机KeilC语言实现.计算机与自动化技术,2006,33(1):49～51
[48]童长飞.C8051F系列单片机开发与C语言编程.北京:北京航空航天大学出版社,2005,5～60
[49]韩佩富,高振天.液晶显示模块LCM046的原理及其C语言编程.电子器件,2005,3(28):648～650
[50]赵青格,陈自力.单片机和液晶显示模块接口及驱动设计.科学技术与工程,2007,23(7):6225～6228
[51]马洪芹,吴锡淳.用单片机控制液晶模块显示.电子科技,2008,(1):9～13
[2]戚宇林,成艳,杨以涵. 35 kV配电网单相接地故障综合定位方法.电网技术,2008,32(10):38～42
[3]李润先.中压电网系统接地实用技术.北京:中国电力出版社,2002,9～79
[4]束洪春.配电网络故障选线.北京:机械工业出版社,2008,1～23
[5]李景禄.实用配电网技术.北京:中国水利水电出版社,2006,99～136
[6]刘家军,李春举,李文玲.在故障测距中应用故障分量电流的阻抗法研究.电气化铁道,2003,(5):1～4
[7]陈伟强.基于概率分析的高阻接地故障检测新方法.沈阳工程学院学报,2007,3(4):342～346
[8]夏长根.配电线路单相接地故障行波定位技术的研究: [硕士学位论文].北京:华北电力大学,2005
[9] Qi Zheng, Yang Yihan, Ma Qian, Zhu Xukai. Study on C-traveling wave fault location in neutral point non-effectively grounded system. In:2004 International Conference on Power System Technology, POWERCON 2004,2004.205～209
[10]严凤.中性点非有效接地系统单相接地行波定位方法的研究:[博士学位论文].北京:华北电力大学,2003
[11] Huang Jingguang, Liu Huijia, Hu Hanmei, Lu Yanping. Distribution Grid Earth Fault Line Detection Study by Traveling Wave Wavelets Coefficient Maximum Polarities. In: High Voltage Engineering, 2006. 100～104
[12]蔡秀雯.配电网行波故障定位技术的研究:[硕士学位论文].北京:华北电力大学,2007
[13]朱艳伟.配电网单相接地故障定位S信号法的研究与改进:[硕士学位论文].保定:华北电力大学,2007
[14]王凤.配电系统接地故障的信号注入检测法的分析与研究:[硕士学位论文].保定:华北电力大学,2007.
[15]王凤,康怡.基于脉冲信号注入法的小电流接地选线技术.电网技术,2008,32(15):90～93
[16] Yu-lin Qi,Yan-wei Zhu. Application of signal generator based on reducing work frequency S’s signal injection method in distribution network. In: Proceedings of the second international conference on intelligent information management system and technology,2007. 323～326
[17]徐容明.一种基于故障指示器的配电线路故障自动定位系统.电力设备,2005,6(10):66～67
[18]伊贵业,杨学昌,吴振升.用在线监测器的配电网故障定位方法.清华大学学报(自然科学版),2000,40(7):35～38
[19]张利,杨以涵,司冬梅,杨鹏,齐超.基于零序电流和磁场检测故障杆的配电网故障定位.电力系统自动化,2008,32(14):16～20
[20] Zeng Xiangjun, Yin Xianggen, Zhang Zhe ,et al. Study on feeder Grounding fault protection based on zero sequence admittance. In: Proceedings of the CSEE(in China) ,2001. 5～10
[21]杨鹏,杨以涵,司冬梅,等.配电网单相接地故障定位技术实验研究.电力系统自动化,2008,32(9):104～107
[22] Elhaffar A, Lehtonen M. An improved GPS current traveling-wave fault locator in EHV transmission networks using few recordings. In: Future Power System, 2005 .16～18
[23]戚宇林.中压配电网单相接地故障定位的研究与实现:[博士学位论文].保定:华北电力大学,2007
[24]贾清泉.非有效接地电网选线保护技术.北京:国防工业出版社,2007. 1～19
[25]张庆超,杨金飞.基于两相电流变换的小电流接地系统故障选线新方法.电力系统自动化,2007,31(8):75～79
[26] Wang Yansong,Chen Guoming,Lu Yanping,Zhang Mengmeng. Novel algorithm of fault line selection based on wavelet packet for single-phase to ground fault in distribution networks .In: High Voltage Engineering ,2005.78～90
[27]张帆,潘贞存,张慧芬.基于零序电流暂态极大值的小电流接地选线新判据.电力系统自动化,2006,30(4):45～48
[28]张新慧,潘贞存,徐丙垠,薛永端.基于暂态零序电流的小电流接地故障选线仿真.继电器,2008,36(3):5～9
[29] Ma Hongjiang, Zeng Xiangjun, Member, IEEE, Wang Yuanyuan, Li Zewen. Grounding Fault Protection with Fault Resistance Measuring for Ineffectively Ground Power Systems. In: IEEE/PES Transmission and Distribution Conference & Exhibition in Asia and Pacific Dalian, 2005. 15～18
[30]张献功.应用GPS接收板研制高精度自守时时钟.机电工程技术,2006,35(3):62～63
[31]孙丙香,温春雪,严国志,杨同忠.GPS精密授时功能在电力系统功角广域测量系统中的应用.国外电子元器件,2006,(1):53～56
[32] Elhaffar A, Lehtonen M. An improved GPS current traveling-wave fault locator in EHV transmission networks using few recordings. In: Future Power System, 2005. 16～18
[32]董剑利,周丹.通用GPS授时同步监控系统的设计与实现.计算机工程与设计,2007 ,28(12):2006～3008
[33] nRF2401Datasheet[ DB/OL ].http://www.freqchina.com
[34]丁永红,孙运强.基于nRF2401的无线数传系统设计.研究与开发,2008,27(4):45～47
[35]王静爽,李新永,曹尔晔.基于分散式信号采集的小电流选线装置.电力系统自动化,2007,31(16):92～93
[36] Jan Izykowski, Rafal Molag, Eugeniusz Rosolowski, et al. Accurate location of faults on power transmission lines with use of two-end unsynchronized measurements. In: IEEE Transactions on Power Delivery, 2006.627～633
[37]吴春林,李翔,江明,陈其工.小电流接地选线中交流信号的采集与处理.机电工程,2007,24(2):5～7
[38] C8051F310Datasheet. http://www.21ic.com
[39] UAF42 Datasheet. http://www.21ic.com
[40]张丽敏.基于UAF42通用有源滤波器的设计.内蒙古电大学刊,2002,(1):97～98
[41] LF347 Datasheet. http://www.21ic.com
[42] LM339D Datasheet. http://www.21ic.com
[43]魏伟.GPS数据采集及动态显示系统的研究与实现.青岛远洋船员学院学报,2008,29(2):4～6
[44]陈丽娟,常丹华.基于nRF2401芯片的无线数据通信.电子器件,2006,29(1):248～250
[45]樊祥现,袁平.nRF2401无线通信数据传输可靠性技术应用.自动化技术与应用,2008,27(7):71～73
[46] Darren Spoor, Jian Guo Zhu. Improved single-ended traveling-wave fault-location algorithm based on experience with conventional substation transducers. In: Power Delivery, 2006.1714～1720
[47]邢文生,李希臣.nRF2401的ShockBurstTM模式及其单片机KeilC语言实现.计算机与自动化技术,2006,33(1):49～51
[48]童长飞.C8051F系列单片机开发与C语言编程.北京:北京航空航天大学出版社,2005,5～60
[49]韩佩富,高振天.液晶显示模块LCM046的原理及其C语言编程.电子器件,2005,3(28):648～650
[50]赵青格,陈自力.单片机和液晶显示模块接口及驱动设计.科学技术与工程,2007,23(7):6225～6228
[51]马洪芹,吴锡淳.用单片机控制液晶模块显示.电子科技,2008,(1):9～13