A Study of Hunan Power Grid Icing during El Nino Period

摘要

Under the circumstances of global climate change,the El Nino event affects power grid icing by influencing the winter climate characteristics.The response characteristics of the massive power grid icing to El Nino should be concern.Based on the analysis and comparison,this study found that areas which have more severe power grid icing of Hunan at 2015 El Nino period are mainly distributed at the midwest and southeastern mountainous and surrounding,with an overall seriousness,but the maximum ice thickness extremum area range shrinking.Overall,the maximum ice thickness responses characteristics of Hunan power grid at the El Nino period can be divided into four types.This analysis of power grid icing characteri stics at the El Nino period summarizes the response characteristics of icing,guides the research of power grid icing ice and ant-icing countermeasures.