小电流接地系统接地故障选线方法
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摘要
小电流接地系统可以保障配电网运转的可靠性,所以我国中低压配电网中大多采用此系统,但是此系统经常发生单相接地故障,并且长时间运行比较容易发展成多相短路,从而造成整个电网电路的短路,不利于系统有效的安全运行,所以应该尽快找出故障线路并将其切除。简要总结近年来现有的选线的理论方法,对选线方法的原理做了简要分析,并指出了小电流接地系统故障选线的主要侧重方向。
The small current grounding system can ensure the reliable operation of distribution network, therefore, it is commonly used in medium and voltage distribution network in China. However, single phase grounding fault occurs frequently in this system,and it will easily result in multi-phase, short circuits after long-time running, then causing the whole circuit to be short-circuited,which is detrimental to the system's safe operation. Thus, the fault grounding line should be quickly found out and cut off. In this paper, the current principles for fault line selection are summarized and analyzed, and the research direction is pointed out.
The small current grounding system can ensure the reliable operation of distribution network, therefore, it is commonly used in medium and voltage distribution network in China. However, single phase grounding fault occurs frequently in this system,and it will easily result in multi-phase, short circuits after long-time running, then causing the whole circuit to be short-circuited,which is detrimental to the system's safe operation. Thus, the fault grounding line should be quickly found out and cut off. In this paper, the current principles for fault line selection are summarized and analyzed, and the research direction is pointed out.
引文
[1]肖白,束洪春,高峰.小电流接地系统单相接地故障选线方法综述[J].继电器,2001(04):16-20.
[2]徐丙垠,薛永端,李天友,等.小电流接地故障选线技术综述[J].电力设备,2005(04):1-7.
[3]栾艳烁,马俊.小电流接地系统接地选线分析[J].科技创新与应用,2013(23):158.
[4]胡鹏.基于小波分析的小电流接地系统单相接地故障选线研究[D].长沙:湖南工业大学,2013.
[5]郭清滔,吴田.小电流接地系统故障选线方法综述[J].电力系统保护与控制,2010,38(02):146-152.
[6]谢世康.基于小波分析的小电流接地系统单相接地故障选线研究[D].长春工业大学,2017.
[7]肖鹏.基于小波分析的小电流接地系统单相接地故障选线研究[D].华北电力大学,2000.
[8]娄静.小电流接地系统单相接地选线方法[J].机电工程技术,2016, 45(06):132-134
[9]张新慧,徐丙垠,潘贞存.小电流接地系统单相接地故障选线原理[J].山东理工大学学报(自然科学版),2008(03):78-83.
[10]楼书氢,刘爱华,鄢学锋,等.小电流接地系统单相接地故障选线方法分析[J].江西电力,2009, 33(01):38-41.
[11]李俊.基于Matlab/Simulink的小电流接地系统故障选线的研究[D].华北电力大学(北京),2017.
[12]季涛,孙同景,薛永端,等.配电网故障定位技术现状与展望[J].继电器,2005(24):32-37.
[13]张晓春,刘迈,尹向宝.基于小波变换的奇异信号检测研究[J].河北大学学报(自然科学版),2005(03):329-331.
[14]潘靖,郝会锋,何润华.配电网接地选线装置的研制[J].电力系统保护与控制,2008(19):48-52.
[15]董富德.10 kV配电线路单相接地故障智能选线方法研究[D].广东工业大学,2015.
[2]徐丙垠,薛永端,李天友,等.小电流接地故障选线技术综述[J].电力设备,2005(04):1-7.
[3]栾艳烁,马俊.小电流接地系统接地选线分析[J].科技创新与应用,2013(23):158.
[4]胡鹏.基于小波分析的小电流接地系统单相接地故障选线研究[D].长沙:湖南工业大学,2013.
[5]郭清滔,吴田.小电流接地系统故障选线方法综述[J].电力系统保护与控制,2010,38(02):146-152.
[6]谢世康.基于小波分析的小电流接地系统单相接地故障选线研究[D].长春工业大学,2017.
[7]肖鹏.基于小波分析的小电流接地系统单相接地故障选线研究[D].华北电力大学,2000.
[8]娄静.小电流接地系统单相接地选线方法[J].机电工程技术,2016, 45(06):132-134
[9]张新慧,徐丙垠,潘贞存.小电流接地系统单相接地故障选线原理[J].山东理工大学学报(自然科学版),2008(03):78-83.
[10]楼书氢,刘爱华,鄢学锋,等.小电流接地系统单相接地故障选线方法分析[J].江西电力,2009, 33(01):38-41.
[11]李俊.基于Matlab/Simulink的小电流接地系统故障选线的研究[D].华北电力大学(北京),2017.
[12]季涛,孙同景,薛永端,等.配电网故障定位技术现状与展望[J].继电器,2005(24):32-37.
[13]张晓春,刘迈,尹向宝.基于小波变换的奇异信号检测研究[J].河北大学学报(自然科学版),2005(03):329-331.
[14]潘靖,郝会锋,何润华.配电网接地选线装置的研制[J].电力系统保护与控制,2008(19):48-52.
[15]董富德.10 kV配电线路单相接地故障智能选线方法研究[D].广东工业大学,2015.