同杆并架线路阻抗比横联差动保护研究

摘要
图/表
参考文献
相关文章 (10)

全文: PDF (2752 KB)
输出: BibTeX | EndNote (RIS)

摘要传统同杆并架电流横联差动(横差)保护存在灵敏度低、相继动作区较大等不足,难以满足高电压等级和考虑线路参数不对称同杆并架线路的要求。该文提出一种利用阻抗比即同相测量阻抗差与同相测量阻抗和之比构成的横差保护判据,分析该判据较少受系统运行方式影响、相继动作区小的原因,并对其进行仿真验证。理论研究和PSCAD/EMTDC仿真结果表明,与电流横差相比,阻抗比横差能够显著缩小相继动作区的大小,具有原理简单、可靠性高、适用于参数不对称线路的优点。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	李世龙
	陈卫
	邹耀
	尹项根
	陈德树

关键词 ：同杆并架, 参数不对称线路, 阻抗比横差, 故障选线, 相继动作区

Abstract：Traditional current transverse differential protection has low sensitivity and long successive operating zone.So it has shortages when applied to the high-voltage and electrical parameters asymmetry power systems.A new transverse differential protection based on the ratio of measurement impedance,i.e.the sum of measurement impedance to the difference between the measurement impedance,is proposed.The proposed scheme is unaffected by system impedance to a large extent,and has a short successive operation zone.The paper analyzes the reason for this and completes simulation research.Theoretical analysis and PSCAD/EMTDC simulation show that,compared with traditional current transverse differential protection,the ratio of measurement impedance can decrease the successive operating zone obviously.The proposed integrated protection scheme is simple,rapid,reliable,and easy to realize.

Key words： Double circuit lines on the same tower electrical parameters asymmetry line the ratio of impedance transverse differential fault line selection successive operating zone

收稿日期: 2015-06-07 出版日期: 2016-11-21

PACS:

TM77

基金资助:国家自然科学基金项目资助(51277085)。

作者简介: 李世龙男,1989年生,博士研究生,研究方向为电力系统继电保护。E-mail:shilonglee@foxmail.com(通信作者)陈卫男,1970年生,副教授,研究方向为电力系统继电保护、故障暂态分析、仿真与建模等。E-mail:weichen@hust.edu.cn

引用本文:

李世龙,陈卫,邹耀,尹项根,陈德树. 同杆并架线路阻抗比横联差动保护研究[J]. 电工技术学报, 2016, 31(21): 21-29. Li Shilong,Chen Wei,Zou Yao,Yin Xianggen,Chen Deshu. Transverse Differential Protection Based on the Ratio of Impedance for Double Circuit Lines on the Same Tower. Transactions of China Electrotechnical Society, 2016, 31(21): 21-29.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I21/21

[1] 俞波,杨奇逊,李营,等.同杆并架双回线保护选相元件研究[J].中国电机工程学报,2003,23(4):38-42.
Yu Bo,Yang Qixun,Li Ying,et al.Research on fault phase selector of protective relay for double circuit lines on the same tower[J].Proceedings of the CSEE,2003,23(4):38-42.
[2] 索南加乐,王树刚,张超,等.利用单端电流的同杆双回线准确故障定位研究[J].中国电机工程学报,2005,25(23):25-30.
Suonan Jiale,Wang Shugang,Zhang Chao,et al.An accurate fault location algorithm for parallel transmission lines using one-terminal current[J].Proceedings of the CSEE,2005,25(23):25-30.
[3] 朱声石.高压电网继电保护原理与技术[M].3版.北京:中国电力出版社,2005:115-250.
[4] 葛耀中.新型继电保护与故障测距原理[M].2版.西安:西安交通大学出版社,2007:133-185.
[5] 田兴瑞,杨富宇,姚维为,等.基于形态-小波的行波差动保护的研究[J].电气技术,2013,14(7):21-25.
Tian Xingrui,Yang Fuyu,Yao Weiwei,et al.Research on traveling wave differential protection based on morphology-wavelet[J].Electrical Engineering,2013,14(7):21-25.
[6] Biswal M,Pati B B,Pradhan A K.Directional relaying for double circuit line with series compensation[J].IET Generation,Transmission & Distribution,2013,7(4):405-413.
[7] 刘欣,黄少锋,张鹏.相电流差突变量选相在混压同塔输电线跨电压故障中的适应性分析[J].电工技术学报,2015,30(21):118-126.
Liu Xin,Huang Shaofeng,Zhang Peng.Adaptability analysis of phase-selector based on sudden-change of phase-current-difference in cross-voltage fault occurred in mixed-voltage transmission lines[J].Transactions of China Electrotechnical Society,2015,30(21):118-126.
[8] 赵艳军,陈晓科,尹建华,等.一种新型的同塔双回输电线路工频阻抗参数测量方法[J].电工技术学报,2015,30(2):255-260.
Zhao Yanjun,Chen Xiaoke,Yin Jianhua,et al.A new measurement method of the power frequency impedance parameters of double-circuit transmission lines on same tower[J].Transactions of China Electrotechnical Society,2015,30(2):255-260.
[9] 刘琦,邰能灵,范春菊,等.基于单端电气量的不对称参数同塔四回线选相方法[J].电工技术学报,2016,31(4):178-186.
Liu Qi,Tai Nengling,Fan Chunju,et al.Fault phase selection for quadruple-circuit transmission lines with asymmetrical parameter based on single-ended electrical quantities[J].Transactions of China Electrotechnical Society,2016,31(4):178-186.
[10]王向平,徐磊,张晓秋.同塔并架四回线中线路保护的适应性[J].电力系统自动化,2007,31(24):80-85.
Wang Xiangping,Xu Lei,Zhang Xiaoqiu.Line protection feature study on adaptation to our-circuit transmission line on a same tower[J].Automation of Electric Power Systems,2007,31(24):80-85.
[11]宋国兵,刘志良,康小宁,等.一种同杆并架双回线接地距离保护方案[J].电力系统保护与控制,2010,38(12):102-106.
Song Guobing,Liu Zhiliang,Kang Xiaoning,et al.A scheme for ground distance protection of parallel transmission lines[J].Power System Protection and Control,2010,38(12):102-106.
[12]冯博文.双回线零序互感对接地距离继电器测量阻抗的影响[J].电力系统自动化,1990,14(5):33-39.
Feng Bowen.The effect of zero-sequency mutual inductance of double-circuit line on ground distance relay[J].Automation of Electric Power Systems,1990,14(5):33-39.
[13]周春霞,余越,赵寒,等.特高压同塔双回线路零序电流补偿系数整定对接地距离保护的影响研究[J].电网技术,2012,36(12):106-111.
Zhou Chunxia,Xu Yue,Zhao Han,et al.Influence of zero-sequence current compensation coefficient setting on earth-fault distance protection for double circuit UHVAC transmission line on the same tower[J].Power System Technology,2012,36(12):106-111.
[14]曾耿晖,黄明辉,刘之尧,等.同杆线路纵联零序保护误动分析及措施[J].电力系统自动化,2006,30(20):103-107.
Zeng Genghui,Huang Minghui,Liu Zhiyao,et al.Analysis and measurement for the zero sequence protection unwanted operation in double circuit lines on the same tower[J].Automation of Electric Power Systems,2006,30(20):103-107.
[15]田宝江,张太升,陈军,等.不平衡零序电流对纵联零序保护的影响分析及其对策[J].电力系统自动化,2013,37(19):132-135.
Tian Baojiang,Zhang Taisheng,Chen Jun,et al.Analysis of influence of unbalance zero-sequence current on pilot zero-sequence protection and its countermeasures[J].Automation of Electric Power Systems,2013,37(19):132-135.
[16]索南加乐,葛耀中,陶惠良.同杆双回线的六序选相原理[J].中国电机工程学报,1991,11(6):1-9.
Suonan Jiale,Ge Yaozhong,Tao Huiliang.The principle of phase six double circuit lines on the same tower[J].Proceedings of the CSEE,1991,11(6):1-9.
[17]田书,刘芳芳,任晓明.基于暂态能量的同塔双回线路故障选相研究[J].电力系统保护与控制,2015,43(1):50-54.
Tian Shu,Liu Fangfang,Ren Xiaoming.Research on transient-based faulty phase selection for double-circuit lines on the same tower[J].Power System Protection and Control,2015,43(1):50-54.
[18]陈亚,李梦诗.基于瞬时能量比的输电线路故障选相方案[J].电力系统保护与控制,2016,44(1):56-64.
Chen Ya,Li Mengshi.A fault phase selection scheme for transmission lines based on instantaneous energy ratio[J].Power System Protection and Control,2016,44(1):56-64.
[19]Perera N,Rajapakse A D.Series-compensated double-circuit transmission-line protection using directions of current transients[J].IEEE Transactions on Power Delivery,2013,28(3):1566-1575.
[20]朱庆刚,刘前进,陈海涛,等.同塔双回不换位线路电压不平衡度研究[J].电力系统保护与控制,2014,42(7):73-79.
Zhu Qinggang,Liu Qianjin,Chen Haitao,et al.Study on voltage imbalance of un-transposed double-circuit lines on the same tower[J].Power System Protection and Control,2014,42(7):73-79.
[21]解建宝,梁振锋,康小宁,等.平行双回线电流平衡保护的仿真研究[J].电网技术,2007,31(6):80-83.
Xie Jianbao,Liang Zhenfeng,Kang Xiaoning,et al.Simulation research on current balance protection for double-circuit transmission lines on the same tower[J].Power System Technology,2007,31(6):80-83.
[22]宋斌,陈玉兰,徐秋林,等.微机横联差动电流方向保护装置[J].电力系统自动化,2003,27(10):85-88.
Song Bin,Chen Yurong,Xu Qiulin,et al.Design of microprocessor-based transverse differential current directional protective device[J].Automation of Electric Power Systems,2003,27(10):85-88.
[23]Bo Zhiqian,Dong Xinzhou,Caunce B R J,et al.Adaptive noncommunication protection of double-circuit line systems[J].IEEE Transactions on Power Delivery,2003,18(1):43-49.
[24]孔伟彬,朱晓彤,张俊洪,等.同杆双回线上零序功率方向继电器的误判问题[J].电力系统自动化,2002,26(22):45-48.
Kong Weibin,Zhu Xiaotong,Zhang Junhong,et al.Wrong judgment of zero sequence directional relay on double-circle line on the same pole[J].Automation of Electric Power Systems,2002,26(22):45-48.
[25]李幼仪,董新洲,孙元章.基于电流行波的输电线横差保护[J].中国电机工程学报,2002,22(11):6-10.
Li Youyi,Dong Xinzhou,Sun Yuanzhang.Current-travelling-wave-based protection of double-circuit transmission line[J].Proceedings of the CSEE,2002,22(11):6-10.
[26]程文君,郑玉平,张哲,等.一种新的双回线单端相继速动保护的实现[J].电力系统自动化,2008,32(17):61-65.
Cheng Wenjun,Zheng Yuping,Zhang Zhe,et al.Implementation of a new one-ended mutual speed-up protection for double-circuit transmission lines[J].Automation of Electric Power Systems,2008,32(17):61-65.