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  2006 

高压直流输电系统换相失败的判断标准

, PP. 19-23

Keywords: 高压直流输电,阀关断角,换相失败,电力系统

Full-Text   Cite this paper   Add to My Lib

Abstract:

建立了4条交、直流输电线路并联的多馈入高压直流输电系统(HVDC)模型并对该模型的直流输电线的换相失败现象进行了详细的理论分析和仿真研究,基于电路基本理论知识,以两端HVDC系统的关断角表达式,推导出了多馈入交、直流并联的HVDC系统的关断角表达式。通过理论分析可知,逆变侧换相失败的判断是由多种变量因素共同决定的,不能简单地假设一个或多个变量不变,而去讨论引起换相失败的结论;否则不会得到准确的结论。提出换相失败的判断标准应该为换流阀关断角是否小于阀去游离时间对应的最小角度。若是,则会发生换相失败;若不是,则不会发生换相失败。

References

[1]  李兴源.高压直流输电系统的运行和控制[M].北京:科学出版社,1998.
[2]  Kundur P.电力系统稳定和控制[M].北京:中国电力出版社,2002.
[3]  杨卫东,徐政,韩祯祥.NETOMAC在直流输电系统仿真研究中的应用[J].电力自动化设备,2001,21(4):10-14.
[4]  Yang Weidong,Xu Zheng,Han Zhenxiang.Application of NETOMAC on HVDC system simulation[J].Electric Power Automation Equipment,2001,21(4):10-14(in Chinese).
[5]  Zhou Changchun,Xu Zheng.Study on commutation failure of multi-infeed HVDC system[C].Proceedings of International Conference on Power System Technology,2002,4:2462-2466.
[6]  陈红军.高压直流输电系统故障及控制策略[J].华中电力,2001, 14(5):5-8.
[7]  Chen Hongjun. HVDC transmission system faults and its control tactics[J].Central China Electric Power,2001,14(5):5-8(in Chinese).
[8]  吴红斌,丁明,刘波.交直流系统暂态仿真中换流器的换相过程分析[J].电网技术,2004,28(17):11-14.
[9]  Wu Hongbin,Ding Ming,Liu Bo.Analysis on commutation process of converters in transient simulation of hybrid AC/DC power systems [J].Power System Technology,2004,28(17):11-14(in Chinese).
[10]  Thio C V,Davies J B,Kent K L.Commutation failures in HVDC transmission systems[J].IEEE Trans on Power Delivery,1996,11(2):946-957.
[11]  荆勇,李立涅,任震.天广交直流系统并联运行的稳定控制[J].电力系统自动化,2002,26(1):49-52.
[12]  Jing Yong,Li Licheng,Ren Zhen.Stability control of Tian-Guang AC and DC parallel transmission system[J].Automation of Electric Power Systems,2002,26(1):49-52(in Chinese).
[13]  欧开健,任震,荆勇,等.直流输电系统换相失败的研究(一)[J].电力自动化设备,2003,23(5):5-25.
[14]  Ou Kaijian,Ren Zhen,Jing Yong,et al.Research on commutation failure in HVDC transmission system part 1:commutation failure factors analysis[J].Electric Power Automation Equipment,2003,23(5):5-25 (in Chinese).
[15]  任震,欧开健,荆勇,等.直流输电系统换相失败的研究(二)[J].电力自动化设备,2003,23(6):6-9.
[16]  Ren Zhen,Ou Kaijian,Jing Yong,et al.Research on commutation failure in HVDC transmission system part 2:measures against commutation failure[J].Electric Power Automation Equipment,2003,23(6):6-9 (in Chinese).
[17]  赵畹君.高压直流输电工程技术[M].北京:中国电力出版社,2004.
[18]  项玲,郑建勇,胡敏强.多端和多馈入直流输电系统中换相失败的研究[J].电力系统自动化,2005,29(11):29-33.
[19]  Xiang Ling,Zheng Jianyong,Hu Minqiang.Study on commutation failure in MTDC and MIDC systems[J].Automation of Electric Power Systems,2005,29(11):29-33(in Chinese).
[20]  毛晓明,管霖,张尧,等.含有多馈入直流的交直流混合电网高压直流建模研究[J].中国电机工程学报,2004,24(9):68-73.
[21]  Mao Xiaoming,Guan Lin,Zhang Yao,et al.Researches on HVDC modeling for AC/DC hybrid grid with multi-infeed HVDC [J].Proceedings of the CSEE,2004,24(9):68-73(in Chinese).
[22]  陈树勇,李新年,余军,等.基于正余弦分量检测的高压直流换相失败预防方法[J].中国电机工程学报,2005,25(14):1-6.
[23]  Chen Shuyong,Li Xinnian,Yu Jun,et al.A method based on the sin-cos components detection mitigates commutation failure in HVDC[J].Proceedings of the CSEE,2005,25(14):1-6(in Chinese).
[24]  Hansen A,Havemann H.Decreasing the commutation failure frequency in HVDC transmission systems[J].IEEE Trans on Power Delivery,2000,15(3):1022-1026.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133