气象科学2017，Vol.37Issue(6)：845-850,6.DOI:10.3969/2017jms.0005
架空传输线雷电感应电压计算公式分析与修订
Analysis and revision for formula of lightning induced voltage on overhead transmission line
摘要
Abstract
The two-dimensional finite difference time domain (FDTD) method is used to calculate the lightning induced voltages in this paper.By comparing with the previous research results,the effectiveness of the proposed method is verified.Then,the qualitative and quantitative analysis on the formula of induced voltage peak in the DL/T 620-1997 are discussed.The qualitative research results show that the lightning induced voltage peak is positively correlated with current amplitude and overhead line height,but negatively correlated with the distance.These results are the same with the FDTD simulation results.But in the quantitative research,the calculation result from rule formula is smaller than that from FDTD simulation.On this basis,the revision coefficient k is proposed to improve the formula,and k is determined to be 1.6 and the formula should be revised to 40 I0·h·S-1.Finally,the accuracy of the revised formula is tested by the LIOV software.When the distance between the lightning channel and overhead transmission line are 100 m and 400 m,the results show that the maximum error of voltage peak value are only 3.7％ and 5.5％ respectively.It can be proved that the peak value of lightning induced voltage on the overhead transmission line can be calculated more accurately by using the revised formula.关键词
规程公式/FDTD/雷电感应电压/架空传输线Key words
Rule formula/FDTD/Lightning induced voltage/Overhead transmission line分类
天文与地球科学引用本文复制引用
高金阁,李京校,张仲,霍沛东,朴文..架空传输线雷电感应电压计算公式分析与修订[J].气象科学,2017,37(6):845-850,6.基金项目
北京市自然科学基金资助项目(8164072) （8164072）
