CAJ | 학술논문

覆冰对电力系统而言是严重的自然灾害,详细了解重庆地区电网覆冰情况对输电线路设计和选择适当的防冰措施具有重要的指导意义。为此,根据对国内外现有的电网覆冰影响因素的分析,对重庆地区在特殊的气候、地形条件下电网覆冰情况进行了调查,根据不同地区海拔高度变化情况下导线覆冰厚度数值,建立了重庆地区电网覆冰厚度与海拔高度之间的数学模型,根据数学模型分析了电网覆冰的海拔高度特性,研究了重庆电网覆冰厚度及分布地区海拔高度间的变化特征。结果表明,重庆电网覆冰主要集中在东北及东南山脉地区,海拔高度对积冰厚度影响明显,输电线路上覆冰厚度随海拔高度增加而呈现指数规律增长。
복빙대전력계통이언시엄중적자연재해,상세료해중경지구전망복빙정황대수전선로설계화선택괄당적방빙조시구유중요적지도의의。위차,근거대국내외현유적전망복빙영향인소적분석,대중경지구재특수적기후、지형조건하전망복빙정황진행료조사,근거불동지구해발고도변화정황하도선복빙후도수치,건립료중경지구전망복빙후도여해발고도지간적수학모형,근거수학모형분석료전망복빙적해발고도특성,연구료중경전망복빙후도급분포지구해발고도간적변화특정。결과표명,중경전망복빙주요집중재동북급동남산맥지구,해발고도대적빙후도영향명현,수전선로상복빙후도수해발고도증가이정현지수규률증장。
To learn the situation in Chongqing ice on power transmission line is of significance for design and selection of appropriate measures of preventing ice.Consequently,according to the analysis of the icing factors,we surveyed the ice conditions in Chongqing area in particular climate and terrain conditions,studied the Chongqing power grid and geographical distribution of ice thickness between altitude variations,established a mathematical model according to the relationship between the ice thickness in Chongqing area and elevation,and analyzed the altitude characteristics of ice-covering in Chongqing power grid.The results show that ice-covering of the Chongqing power grid ice concentrates on the mountain areas in the northeast and southeast regions,altitude on ice thickness has a significant effect,and the ice thickness on transmission line increases with altitude in an exponential rate.