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  2009 

采用电网直流等效模型评估地磁感应电流水平的影响因素分析

, PP. 13-17

Keywords: 地磁暴,地磁感应电流(GIC),电网模型,变压器

Full-Text   Cite this paper   Add to My Lib

Abstract:

由地磁暴引起的电网地磁感应电流(geomagneticallyinducedcurrent,GIC)的频率很低,但并不为0,所以采用电网直流等效模型进行GIC水平评估时必然会产生误差。文章分析了线路等效电感、变压器等效电感和高压并联电抗器等效电感对采用电网直流等效模型评估GIC水平所产生误差的影响程度,通过仿真计算分析了变压器绕组联结组别和变压器铁心结构对变压器等效电感的影响,最后针对我国电网的特点,提出了用于评估超、特高压电网电磁感应电流水平的电网等效模型。

References

[1]  Lundstedt H.The sun space weather and GIC effects in Sweden[J].
[2]  Advances in Space Research,2006,37(6):1182-1191.
[3]  蒯狄正,刘成民,万达.直流偏磁对变压器影响研究[J].江苏电机工程,2004,23(3):1-5.
[4]  Kuai Dizheng,Liu Chengmin,Wan Da.Experiment and research of the influence of DC magnetic bias on transformer[J].Jiangsu Electrical Engineering,2004,23(3):1-5(in Chinese).
[5]  刘林玉,谢学武.500 kV主变压器异常声音分析[J].高电压技术,2005,31(4):85-87.
[6]  Liu Linyu,Xie Xuewu.Analysis of increase of noise of 500 kV transformer[J].High Voltage Engineering,2005,31(4):85-87(in Chinese).
[7]  张建平,潘星.500 kV变压器异常噪声与振动的原因分析[J].浙江电力,2006,3(6):6-10.
[8]  Zhang Jianping,Pan Xing.Analysis for abnormal noise and mechanical vibration of 500 kV transformer[J].Zhejiang Electric Power,2006,3(6):6-10(in Chinese).
[9]  盘学南,玉小玲.变压器运行噪声异常的探讨[J].变压器,2006,43(8):43-44.
[10]  Pirjola R.Effects of space weather on high-latitude ground systems [J].Advances in Space Research,2005,36(12):2231-2240.
[11]  Albertson V D,Bozoki B,Feero W E,et al.Geomagnetic disturbance effects on power systems[J].IEEE Trans on Power Delivery,1993,8(3):1206-1216.
[12]  Molinski T S,Feero W E,Damsky B L.Shielding grids from solar storm[J].IEEE Spectrum,2000,37(11):55-60.
[13]  Viljanen A.Relation of geomagnetically induced currents and local geomagnetic variations[J].IEEE Trans on Power Delivery,1998,13(4):1285-1290.
[14]  Price P R.Geomagnetically induced current effects on transformers [J].IEEE Trans on Power Delivery,2002,17(4):1002-1008.
[15]  Lu Shu,Liu Yilu,J De La Ree.Harmonics generated from a DC biased transformer[J].IEEE Trans on Power Delivery,1993,8(2):725-731.
[16]  You Y,Fuchs E F,Lin D,et al.Reactive power demand of transformers with DC bias[J].IEEE Industry Applications Magazine,1996,2(4):45-52.
[17]  Bolduc L.GIC observations and studies in the Hydro-Quebec power system[J].Journal of Atmospheric and Solar-Terrestrial Physics,2002,64(16):1793-1802.
[18]  Erinmez L A,Kappenman J G,Radasky W A.Management of the geomagnetically induced current risks on the national grid company’s electric power transmission system[J].Journal of Atmospheric and Solar-Terrestrial Physics,2002,64(5):734-756.
[19]  Pan Xuenan,Yu Xiaoling.Discussion on abnormal noise of transformer[J].Transformer,2006,43(8):43-44(in Chinese).
[20]  Boterler D H,Pirjola R J.Modelling geomagnetically induced currents produced by realistic and uniform electric fields[J].IEEE Trans on Power Delivery,1998,13(4):1303-1308.
[21]  Pulkkien A,Viljanen A,Pirjola R.Estimation of geomagnetically induced current levels from different input data[J].Space Weather,2006,4(3):1-15.
[22]  何仰赞,温增银.电力系统分析[M].武汉:华中科技大学出版社,2002.
[23]  于超.特高压电网参数及地磁感应电流评估算法研究[D].北京:华北电力大学,2008.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133