三华特高压电网地磁感应电流分析计算

发布时间：2018-06-08 14:25

本文选题：特高压电网 + 地磁感应电流　；参考：《科学技术与工程》2014年32期

【摘要】：在相同感应地电场作用下,高电压等级输电线路的地磁感应电流(geomagnetically induced currents,GIC)比较大,交流特高压电网建设使我国电网增加了1 000 k V电压等级,综合考虑线路长度、单位阻值等GIC影响因素,准确计算我国1000k V特高压电网的GIC是重要研究课题。以我国三华特高压电网为例,只考虑1 000 k V电压等级网络,建立GIC模型,计算了东向及北向感应地电场情况下特高压电网变电站及输电线路的GIC。计算结果表明,我国特高压电网1 000 k V变电站中受GIC影响最大的变电站有锡盟,上海等特高压变电站;另外我国特高压电网输电线路中GIC规划计算数据偏大的有石家庄—济南线路和南阳—长治(晋东南)线路等,应引起电网公司对GIC灾害防治的重视。
[Abstract]:Under the action of the same induction electric field, the geomagnetically induced currents (GIC) of the high voltage grade transmission line is larger. The AC UHV power grid has increased the voltage level of 1000 K V in the power grid of our country, considering the GIC influence factors such as line length, unit block value and so on, and accurately calculating the 1000K V UHV power grid in China GIC is an important research topic. Taking China's three Watt High voltage power grid as an example, only considering 1000 K V voltage grade network and establishing GIC model, the GIC. calculation results of UHV power grid and transmission line under the eastward and northward induction electric field show that the largest change affected by GIC in the 1000 K V substation of UHV power grid in our country. The power station has Xion, Shanghai and other UHV substations. In addition, the data of GIC planning and calculation in the transmission lines of UHV power transmission lines in our country are Shijiazhuang Ji'nan line and Nanyang Changzhi (Southeast Shanxi) line and so on, which should arouse the attention of the Power Grid Corp to the prevention and control of GIC disaster.
【作者单位】：新能源电力系统国家重点实验室(华北电力大学);东北电力大学;
【基金】：国家自然科学基金项目(51177045) 国家863计划项目(2012AA121005) 国家科技部国际合作计划项目(2010DFA64680)资助
【分类号】：TM751;P318

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