基于改进欧拉公式的变电站雷电过电压计算  

Calculation of Substation Lightning Overvoltage Based on Modified Euler's Formula

作　　者：阳青 董申颂 

机构地区：[1]广西电网有限责任公司百色供电局,广西百色533000

出　　处：《广西电力》2014年第5期5-8,13,共5页Guangxi Electric Power

摘　　要：为准确计算变电站雷电侵入波过电压,提出了基于改进欧拉公式的数值求解法。通过分别采用基于改进欧拉公式的数值求解法和基于贝杰龙法的EMTP仿真法对变电站的雷电过电压进行计算、对比,结果表明二者计算结果很接近,验证了基于改进欧拉公式的数值求解法是可行的。而与基于贝杰龙法的EMTP仿真法相比,基于改进欧拉公式的数值求解法的建模和计算过程更精确,更能准确模拟变电站遭受雷击后设备上过电压发展的实际过程。In order to calculate precisely the overvoltage of substation lightning invasion wave, the numerical solution method based on modified Euler＇ s formula is proposed. The substation lightning overvohage is calculated and compared by the numerical solution method based on modified Euler＇ s formula and the EMTP simulation method based on Bederon method. Results show that calculation results from two methods are very close, which testified that the numerical solution method based on modified Euler＇ s formula is feasible. Comparing with EMTP simulation method based on Bederon method, the numerical solution method based on modified Euler＇ s formula has more precise modeling and calculating process and can accurately simulate the actual overvohage development process of device after the lightning stroke in substation.

关 键 词：变电站雷电侵入波 雷电过电压 改进欧拉公式 EMTP仿真 

分 类 号：TM863[电气工程—高电压与绝缘技术]