地磁暴对电力系统稳定性的影响  

Influence of Geomagnetic Storms on the Stability of Power System

作　　者：王泽忠[1] 司远 刘连光 Wang Zezhong;Si Yuan;Liu Lianguang(Beijing Key Laboratory of High Voltage and EMC,North China Electric Power University,Beijing,102206,China;State Key Laboratory for Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Beijing,102206,China)

机构地区：[1]高电压与电磁兼容北京市重点实验室(华北电力大学),北京102206 [2]新能源电力系统国家重点实验室(华北电力大学),北京102206

出　　处：《电工技术学报》2022年第7期1780-1788,共9页Transactions of China Electrotechnical Society

摘　　要：鉴于近年来地磁暴侵害中低纬度地区电网事件的增加及强地磁暴引起的魁北克大停电事故,分析地磁暴对电力系统稳定运行的影响十分必要。受各种因素的约束,电力系统往往运行在极限稳定状态,地磁暴感应电流(GIC)会引起变压器无功损耗(以下简称为GIC-Q)增加,具有全网群发性和波动性的GIC-Q是否会增大系统失稳风险以及直流系统的加入是否会对电网抗磁暴能力产生影响尚未得到研究。从电力系统稳定的角度出发,研究长时间尺度下变电站GICQ的概率分布规律,结合GIC标准算例,在系统原有负荷的基础上将GIC-Q作为一种无功负荷,分析地磁暴对交流系统及交直流混联系统概率稳定性的影响。In view of the increase of geomagnetic storms invading the power grid in middle and low latitudes in recent years and the blackout accident in Quebec caused by strong geomagnetic storm,it is necessary to analyze the impact of geomagnetic storms on the stable operation of power system.Constrained by various factors,the power system often operates in a state of extreme stability.The geomagnetically induced current(GIC)causes an increase in the reactive power loss(GIC-Q)of the transformer.Whether the GIC-Q with the whole network clustering and volatility will increase the risk of system instability and whether the addition of the DC system will affect the anti-geomagnetic storm ability of the power grid has not been studied.From the perspective of power system stability,the probability distribution law of substation GIC-Q in long time scale is studied.Combined with the GIC benchmark network model,GIC-Q is added to the system on the basis of the original load,and the influence of geomagnetic storm on the probability stability of AC system and AC/DC hybrid system is analyzed.

关 键 词：地磁暴 GIC-Q 交直流混联系统 电力系统稳定性 概率分布 

分 类 号：TM712[电气工程—电力系统及自动化]