全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
电网技术  2013 

山西500kV长久三回线路电流不平衡原因分析及改造研究

, PP. 641-646

Keywords: 三相电流不平衡,不换位线路,结构参数,1,000,kV,保护启动

Full-Text   Cite this paper   Add to My Lib

Abstract:

分析了直流输电控制系统仿真计算模型的发展现状,提出了一套基于实际工程控制器的直流控制系统仿真模型。介绍了模型的基本结构、控制特性及对实际控制器的主要简化。模型包含主控制、极控制、触发控制3个主要部分,分析了各个控制模块的原理与实现方法,包括主控制、电流控制、熄弧角控制、触发控制等。其中触发控制部分实现了直流工程所采用的等相位间隔触发方法,并能够考虑提前触发机制,以预防换相失败。针对实际直流控制器的分层计算方式,提出了采用统一步长计算的补偿措施。仿真结果与若干直流工程系统现场调试的录波曲线进行了对比,分析提前触发对模型仿真结果的影响,验证了模型的准确性。

References

[1]  郭志红,程慈源,苏建军.山东电网部分500 kV线路不平衡电流偏大的原因分析及改善措施[J].电网技术,2006,30(21):32-36. Guo Zhihong,Cheng Ciyuan,Su Jianjun.Analysis on oversize unbalanced currents in part of 500 kV transmission lines of Shandong power grid and corresponding improvement measures[J].Power System Technology,2006,30(21):32-36(in Chinese).
[2]  汪晶毅,李志泰,曹祥麟.1 000 kV交流同塔双回线路电气不平衡度的研究[J].南方电网技术,2010,4(z1):108-112. Wang Jingyi,Li Zhitai,Cao Xianglin.Research on electric unbalance degree of 1 000 kV AC double-circuit on the same tower[J].Southern Power System Technology,2010,4(z1):108-112(in Chinese).
[3]  班连庚,王晓刚,白宏坤,等.同塔架设的220 kV/500 kV输电线路感应电流与感应电压仿真分析[J].电网技术,2009,33(6):45-49. Ban Liangeng,Wang Xiaogang,Bai Hongkun,et al.Simulative analysis of induced voltages and currents among multi circuit 220 kV and 500 kV transmission lines on same tower[J].Power System Technology,2009,33(6):45-49(in Chinese).
[4]  邹林,林福昌,龙兆芝.输电线路不平衡度影响因素分析[J].电网技术,2008,32(S2):283-286. Zou Lin,Lin Fuchang,Long Zhaozhi.Influence factors analysis of unbalance parameter for overhead line[J].Power System Technology,2008,32(S2): 283-286(in Chinese).
[5]  张勇,郎需军,杨博.1 000 kV特高压输电线路导线排列方式和换位对地线能耗的影响[J].电网技术,2011,35(4):21-24. Zhang Yong,Lang Xujun,Yang Bo.Influences of conductor arrangement and line transposition adopted in 1 000 kV transmission project on power loss in ground wire[J].Power System Technology,2011,35(4):21-24(in Chinese).
[6]  王晓彤,林集明,班连庚.1000 kV同塔双回线路不平衡度及换位方式分析[J].电网技术,2009,33(5):1-5. Wang Xiaotong,Lin Jiming,Ban Liangeng.Analysis on unbalance factor and transposing modes for 1 000 kV double-circuit transmission lines on the same tower[J].Power System Technology,2009,33(5):1-5(in Chinese).
[7]  汲亚飞,邹军.同塔多回线路垂直排列最优相序布置方式[J].高电压技术,2008,34(1):172-175. Ji Yafei,Zou Jun.Optimized phase sequence arrangements for multiple-loop power lines with vertical arrangements[J].High Voltage Engineering,2008,34(1):172-175(in Chinese).
[8]  张要强,张天光,王予平,等.1000kV同塔双回输电线路电气不平衡度及换位问题研究[J].电网技术,2009,33(1):1-5. Zhang Yaoqiang,Zhang Tianguang,Wang Yuping,et al.Research on electric unbalance degree and conductor transposition of 1 000 kV double-circuit transmission line on the same tower[J].Power System Technology,2009,33(1):1-5(in Chinese)
[9]  蓝磊,艾绍贵,黄永宁,等.宁夏北部220kV电网不平衡电流的计算与分析[J].高电压技术,2010,36(2):488-494. Lan Lei,Ai Shaogui,Huang Yongning,et al.Calculation and analysis of unbalanced currents in Ningxia northern 220 kV power grid [J].High Voltage Engineering,2010,36(2):488-494(in Chinese).
[10]  胡丹晖,蔡汉生,涂彩琪,等.500 kV同杆并架双回线路电气特性研究[J].高电压技术,2005,31(4):21-23. Hu Danhui,Cai Hansheng,Tu Caiqi,et al.Study on the electrical characteristic of 500 kV common-tower double-transmission line [J].High Voltage Engineering,2005,31(4):21-23(in Chinese).
[11]  李健,谢帮华,文武,等.750 kV同塔双回输电线路电气不平衡度及换位研究[J].电力建设,2007,28(6):27-29. Li Jian,Xie Banghua,Wen Wu,et al.Study on electric unbalance and transposition of 750 kV 1-tower double-circuit transmission line [J].Electric Power Construction,2007,28(6):27-29(in Chinese)
[12]  陈亚伦,李志国.伊敏一冯屯 500 kV同塔双回线不平衡度、感应电流及潜供电流研究[J].电网技术,1995,19(6):13-17. Chen Yalun,Li Zhiguo.Study of unbalance factor and induced current for Yimin-Fengtun 500 kV double-circuit tower line[J].Power System Technology,1995,19(6):13-17(in Chinese)
[13]  汪晶毅,李志泰,潘春平.500 kV狮洋至五邑线路电气不平衡度的研究[J].南方电网技术,2009,3(z1):145-149. Wang Jinyi,Li Zhitai,PanChunping.Research on electric unbalance degree of 500 kV Shiyang to Wuyi line[J].Southern Power System Technology,2009,3(z1):145-149(in Chinese).
[14]  韦刚,张子阳,房正良,等.多回输电线路并架的不平衡性分析[J].高电压技术,2005,31(4):9-11. Wei Gang,Zhang Ziyang,Fang Zhengliang,et al.Analysis of unbalance of the parallel multi-circuit transmission lines[J].High Voltage Engineering,2005,31(4):9-11(in Chinese).
[15]  GB 15543?2008 电能质量三相电压不平衡标准[S].
[16]  刘万顺.电力系统故障分析[M].2版.北京: 中国电力出版社,1998:111-124.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133