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电网技术 2009, 33(8) 13-17 DOI:
ISSN: 1000-3673 CN: 11-2410/TM |
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| 国家重点基础研究项目 |
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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 |
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张冰,刘连光,肖湘宁 |
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华北电力大学 电气与电子工程学院，北京市 昌平区 102206 |
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摘要：
由地磁暴引起的电网地磁感应电流(geomagnetically induced current，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。 |
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关键词：
地磁暴;地磁感应电流(GIC);电网模型;变压器
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Analysis of Impacts on Geomagnetically Induced Current Level Evaluation by Power Network DC Equivalent Model |
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ZHANG Bing ,LIU Lian-guang ,XIAO Xiang-ning |
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School of Electrical and Electronic Engineering，North China Electric Power University，Changping District，Beijing 102206，Chi |
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Abstract:
Although the frequency of geomagnetically induced current (GIC) caused by geomagnetic storm is very low but not equal to zero, the evaluation error is consequential when DC equivalent model of power network is adopted to evaluate GIC level. In this paper the impacting extent of equivalent inductances of transmission lines and transformers as well as that of high voltage shunt reactor on GIC level evaluation by DC equivalent model of power network are analyzed, and by means of simulation the impacts of transformer winding connection modes and structure of transformer cores on equivalent inductance of transformer are researched. Finally, based on the property of power grids in China an equivalent model for the evaluation of GIC level in EHV and UHV power grids is put forward. |
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Keywords:
geomagnetic storm;geomagnetically induced current (GIC);power system model;transformer
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收稿日期 2008-10-21 修回日期 网络版发布日期 2009-04-20 |
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DOI: |
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基金项目:
基金项目：国家863高技术基金项目(2007AA04Z425)；国家自然科学基金资助项目(50677020)。 |
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通讯作者: 张冰 |
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作者简介: 张冰(1981—)，男，博士研究生，研究方向为电力系统分析与控制，目前从事电网GIC影响和治理的相关工作，E-mail：electricity12345@126.com；
刘连光(1954—)，男，教授，博士生导师，河北省省管优秀专家，从事电网安全运行与灾害防治、供电系统电能质量的研究；
肖湘宁(1953—)，男，教授，博士生导师，从事电力系统分析与控制、电能质量等研究工作。 |
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作者Email: |
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| 参考文献： |
| [1] Pirjola R．Effects of space weather on high-latitude ground systems [J]．Advances in Space Research，2005，36(12)：2231-2240．
[2] 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．
[3] Molinski T S，Feero W E，Damsky B L．Shielding grids from solar storm[J]．IEEE Spectrum，2000，37(11)：55-60．
[4] Viljanen A．Relation of geomagnetically induced currents and local geomagnetic variations[J]．IEEE Trans on Power Delivery，1998，13(4)：1285-1290．
[5] Price P R．Geomagnetically induced current effects on transformers [J]．IEEE Trans on Power Delivery，2002，17(4)：1002-1008．
[6] 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．
[7] 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．
[8] 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．
[9] 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．
[10] Lundstedt H．The sun space weather and GIC effects in Sweden[J]．
Advances in Space Research，2006，37(6)：1182-1191．
[11] 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．
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)．
[12] 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．
Liu Linyu，Xie Xuewu．Analysis of increase of noise of 500 kV transformer[J]．High Voltage Engineering，2005，31(4)：85-87(in Chinese)．
[13] 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．
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)．
[14] 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．
Pan Xuenan，Yu Xiaoling．Discussion on abnormal noise of transformer[J]．Transformer，2006，43(8)：43-44(in Chinese)．
[15] 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．
[16] Pulkkien A，Viljanen A，Pirjola R．Estimation of geomagnetically induced current levels from different input data[J]．Space Weather，2006，4(3)：1-15．
[17] 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．
[18] 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．
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