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  2011 

交流特高压线路高抗补偿度上限

, PP. 6-18

Keywords: 特高压输电线路,单回路,双回路,高抗补偿度,上限,非全相运行,谐振过电压,中性点接地电抗

Full-Text   Cite this paper   Add to My Lib

Abstract:

为避免因高抗补偿度过高而产生的非全相运行谐振过电压,分析了单、双回特高压线路非全相运行谐振过电压的产生机理,给出了从避免产生谐振过电压角度确定高抗补偿度上限的方法。结果表明,线路参数对高抗补偿度上限的影响很小,且单、双回线路的高抗补偿度上限非常接近。在目前线路设计水平和设备制造水平下,在系统频率不低于48Hz的条件下,当高抗补偿度设计值不超过90%时,可确保不产生具有危险性的高幅值非全相运行谐振过电压,故一般可将90%作为高抗补偿度的设计上限;而当高抗补偿度小于85%时,肯定不会发生谐振。作为研究的基础,深入分析了高抗中性点接地电抗的阻抗值偏差、系统频率偏差以及高抗补偿容量偏差对产生非全相运行谐振的条件的影响。

References

[1]  刘振亚.特高压电网[M].北京:中国经济出版社,2005:2-4.
[2]  刘振亚.特高压交流输电技术研究成果专辑(2005年)[M].北京:中国电力出版社,2006:2-4.
[3]  周浩.发展我国交流特高压输电的建议[J].高电压技术,1996,22(1):25-27.
[4]  Zhou Hao.Suggestion of developing UHV in China[J].High Voltage Engineering,1996,22(1):25-27(in Chinese).
[5]  Abbas Ketabi,Ali Mohammad Ranjbar,Rene Feuillet.Analysis and control of temporary overvoltages for automated restoration planning [J].IEEE Trans on Power Delivery,2002,17(4):1121-1127.
[6]  黄佳,王钢,李海锋,等.1000 kV长距离交流输电线路工频过电压仿真研究[J].继电器,2007,35(4):32-39.
[7]  Huang Jia,Wang Gang,Li Haifeng,et al.Study on simulation of fundamental frequency overvoltages for UHV AC transmission lines[J].Relay,2007,35(4):32-39(in Chinese).
[8]  La Forest J J,Priest K W,Ramirez,et al.Resonant voltages on reactor compensated extra-high-voltage lines[J].IEEE Trans on Power Apparatus and Systems,1972,91(6):2528-2536.
[9]  Pickett M J,Manning H L,Van Geem,et al.Resonant coupling on EHV circuits:1 field investigation[J].IEEE Trans on Power Apparatus and Systems,1968,87(2):322-325.
[10]  Hesse M H,Wilson D D.Near resonant coupling on EHV circuits: 2 methods of analysis[J].IEEE Trans on Power Apparatus and Systems,1968,87(2):326-334.
[11]  Reid W E,Gustin R F,Zylstra P V.Guidelines for determining parallel resonance on EHV transmission lines[J].IEEE Trans on Power Apparatus and Systems,1983,102(9):3196-3204.
[12]  Iliceto F,Cinieri E,Di Vita A.Overvoltages due to open-phase occurrence in reactor compensated EHV lines[J].IEEE Trans on Power Apparatus,1984,103(3):474-482.
[13]  杨凌辉,张旭航,马仁明,等.500 kV同塔双回线路谐振的仿真研究[J].华东电力,2008,36(7):31-33.
[14]  Yang Linghui,Zhang Xuhang,Ma Renming,et al.Resonance simulation for 500 kV double-circuit lines on the same tower[J].East China Electric Power,2008,36(7):31-33(in Chinese).
[15]  刘晓冬,赵丙军,焦海东,等.500 kV输电线路非全相谐振过电压的计算及分析[J].河北电力技术,2007,26(6):16-24.
[16]  Liu Xiaodong,Zhao Bingjun,Jiao Haidong,et al.Calculation and analysis on resonance overvoltage in non-full phase operation for
[17]  50 0 kV transmission line[J].Hebei Electric Power,2007,26(6):16-24(in Chinese).
[18]  GB/T 15945—1995 电能质量 电力系统频率允许偏差[S].1995.
[19]  DL428—91 电力系统自动低频减负荷技术规定[S].1991.
[20]  徐钟祝.架空输电线路工频参数测量及分析[J].四川电力技术,2009,29(1):4-6.
[21]  Xu Zhongzhu.Measurement and analysis on power- frequency parameters of overhead transmission line[J].Sichuan Electric Power Technology,2009,29(1):4-6(in Chinese).
[22]  孙鹏飞.输配电线路工频参数测量系统设计[D].保定:河北大学,2006.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133