2021年10月11日地磁暴对两座变电站GIC的影响  

Influence Factors of GIC in Two Substations of Geomagnetic Storm on 11 October 2021

作　　者：高贺 张倩然 刘连光[2] 王鹏 姜楠 周立超 GAO He;ZHANG Qianran;LIU Lianguang;WANG Peng;JIANG Nan;ZHOU Lichao(State Grid East Inner Mongolia Electric Power Research Institute,Huhhot 010020;School of Electrical and Electronic Engineering,North China Electric Power University,Beijing 102206)

机构地区：[1]国网内蒙古东部电力有限公司电力科学研究院,呼和浩特010020 [2]华北电力大学电气与电子工程学院,北京102206

出　　处：《空间科学学报》2022年第6期1145-1151,共7页Chinese Journal of Space Science

基　　金：国家自然科学基金项目(51577060);国网内蒙古东部电力有限公司项目(526604200001)共同资助。

摘　　要：近年来中国相继监测到地磁暴侵害电网、铁路轨道电路和油气管道系统产生的地磁感应电流(Geomagnetically Induced Current,GIC)数据,但是目前实测的GIC数据还相对较少。根据2021年10月9日日冕物质抛射事件(CME)产生的Kp指数为6的地磁扰动(Geomagnetic Disturbance,GMD)数据,500kV阿拉坦变电站(48.7°N,116.8°E)和上河变电站(33.4°N,119.2°E)及输电系统的参数,分析了2021年10月11日地磁暴期间在两座变电站监测到的GIC数据以及输电系统参数对GIC量值的影响。结果表明:地磁暴在500 kV上河变电站产生的GIC比阿拉坦变电站GIC量值相对较大。分析结果说明,在这次磁暴事件中,输电线路导线电阻是影响变电站GIC的主要因素。In recent years,China has successively monitored the Geomagnetically Induced Current(GIC)data generated by geomagnetic storms against the power grid,railway track circuit as well as the oil and gas pipeline system,However,the measured GIC data are relatively few at present.According to the Geomagnetic Disturbance(GMD)data of geomagnetic storm with Kp index of 6 generated by CME on 9 October 2021,the parameters of 500 kV Alatan substation(48.7°N,116.8°E),Shanghe substation(33.4°N,119.2°E)and transmission system,the GIC data monitored in two substations during the geomagnetic storm on 11 October 2021,and the influence of transmission system parameters on the GIC value are analyzed.Results show that the GIC value produced by geomagnetic storm in 500 kV Shanghe substation is relatively larger than that in Alatan substation.The analysis results show that the conductor resistance of transmission line is the main factor affecting the GIC of substation in this magnetic storm event.

关 键 词：地磁暴 地磁扰动 变电站 变压器 地磁感应电流 

分 类 号：P353[天文地球—空间物理学]