高电压技术2018，Vol.44Issue(8)：2450-2456,7.DOI:10.13336/j.1003-6520.hve.20180731003
基于雨雾凇观测的电网连续覆冰日数规律
Regular Pattern of Power Grid Continuous Ice-covering Days Based on Glaze/Rime Observation
摘要
Abstract
Regular pattern of power grid continuous icing days is important for anti-icing design of transmission line, deployment of anti-icing measures, and emergency strategy. Based on glaze or rime observation data, we established a continuous icing day identification model and calculated the maximum continuous ice-covering days of Hunan power grid from 1951 to 2015. By using the Person-Ⅲ probability function, we analyzed the spatial patterns of continuous ice-covering days for recurrence of 15, 30, 50, and 100 years. The results show that the high-value center of ice-covering days locates on north, southwest and southeast of Hunan. With increasing of recurrence, the growing rate of maximum continuous icing days shows the pattern of "northeast>north>southeast>others". In addition, the recurrence of extra serious ice-covering period is 11.8 years by calculation, which provides an important reference for anti-icing design of power grid.关键词
覆冰日数判识模型/日变化/最大连续覆冰日数/皮尔逊Ⅲ型分布/重现期Key words
model of identifying icing day/diurnal variation/maximum continuous ice-covering days/Pearson Ⅲ type distribution/recurrence引用本文复制引用
冯涛,陆佳政,徐勋建,杨莉,郭俊,李丽..基于雨雾凇观测的电网连续覆冰日数规律[J].高电压技术,2018,44(8):2450-2456,7.基金项目
国家电网公司科技项目(5216A0180004).Project supported by Science and Technology Project of State Grid Corporation of China(5216A0180004). （5216A0180004）
