110kV输电线路电容降压取电系统雷电过电压分析Lighting Over-Voltage Analysis of 110 kV Transmission Line Capacitor Step-Down Power System
李青山;皇甫羽飞;张帅;程凤鸣;袁正华;狄京元;李卫国;
摘要(Abstract):
针对输电线路杆塔电容取电系统在遭受雷击时的过电压问题,以新开发的110 k V输电线杆塔电容取电系统为研究对象,在介绍该电容取电系统基本工作原理、整机工频测试结果的基础上,进一步建立了取电系统的雷电暂态计算模型,利用电磁暂态计算程序ATP-EMTP软件对雷击下取电系统过电压进行仿真计算,确定了取电系统的雷电过电压水平,并提出相应的过电压保护措施。仿真结果表明,采用氧化锌避雷器和压敏电阻可以有效的限制雷电过电压幅值,实现对取电系统的过电压保护。
关键词(KeyWords): 取电系统;高压电容器;电压互感器;避雷器;雷电过电压;保护;数值仿真分析
基金项目(Foundation):
作者(Author): 李青山;皇甫羽飞;张帅;程凤鸣;袁正华;狄京元;李卫国;
Email:
DOI: 10.13335/j.1000-3673.pst.2015.07.045
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