1、 应用 ATP-draw 计算 500kV 变电站的绕 击耐雷水平 系 别：机电与自动化学院 专 业 班：电气工程及其自动化 0703 班 姓 名：XXX 学 号：20071XXXXXX 指导教师：XXXX 2011 年 6 月 XX 应用 ATP-draw 计算 500kV 变电站的 绕击耐雷水平 Application of ATP-draw around the calculation of 500kV substation level LIGHTNING I 摘 要 由于输电线路所经地区的地形、地貌、雷电活动情况以及线路自身的防雷设 计和绝缘水平不同，雷击引起的故障原因各不相同。如果没
2、有针对特殊地段采取 特殊的防雷措施，难以收到较好的防雷效果。国内外运行经验表明，500kV 及以 上电压等级输电线路，尤其在山区丘陵地带,绕击是造成雷击的主要原因。因此 要重视雷击跳闸原因的分析， 根据具体情况及运行经验采取有效和针对性的防范 措施，降低输电线路的雷击跳闸率。 本课题中应用 ATP-draw 计算程序计算 500kV 变电站的绕击耐雷水平。 通过 仿真软件建立变电站按一线一变方式运行的情况下的变电站模型和进线端线路 模型。并计算当雷击于 500kV 变电站近区输电线路导线上时，变电站内高压电 器设备上的过电压水平。计算研究中，先假定一个变电站内电气设备的绝缘配置 水平，与计算得
3、到的耐雷水平进行比较，来判断此次绕击是否会发生线路跳闸事 故。对仿真结果进行分析，通过对比数据得出变电站的绕击耐雷水平，并进一步 思考如何改进变电站的防雷能力。 关键词关键词：输电线路 绕击 电气几何模型 绕击跳闸率 耐雷水平 II Abstract By transmission lines because of the topography of the area, landscape, lightning activities, and line their own different levels of lightning protection design and insulatio
4、n, lightning caused by faults for different reasons. If there is no special section for the lightning to take special measures, the mine is difficult to receive good results. Domestic and international operating experience shows that, 500kV and above voltage transmission lines, especially in the mou
5、ntainous hills, around the lightning strike is the main cause. Therefore, attention should be paid analysis of the causes lightning trip, according to the specific circumstances and operating experience to take effective and targeted preventive measures to reduce the rate of transmission line lightn
6、ing trip. Application of this project calculation program to calculate ATP-draw around 500kV substation LIGHTNING level. The simulation software to establish a change substation line run by the circumstances of the substation model and into the line-side line model. And calculate when lightning strikes near the 500kV transmission line substation wire, the substation high voltage equipment on the over-voltage level. Calculation of the first electrical device assuming a substation insulation
