川西北高海拔山地架空线覆冰特性研究

Study on Icing Characteristics of Overhead Lines in High Altitude Mountainous Region of Northwest Sichuan

目前国内外尚未有4000m以上高海拔山地架空线覆冰观测研究成果报道,为积累西部高海拔无资料地区覆冰气象基础资料和探索区域电力架空线覆冰特性等规律,满足输电线路规划和勘测设计以及生产运维需要,依托横断山区川西北4000m以上高海拔山地设立的人工观冰站,开展了8个观冰年度覆冰期架空线覆冰气象观测研究,通过对数据的定性分析和定量计算,基本掌握了研究区域覆冰过程的覆冰类型特性和密度特性。

At present,there is no report on the research results of icing observation of overhead lines in high altitude mountain areas above 4 000 m. In order to accumulate the basic meteorological data of icing in the high altitude area of west China and to explore the characteristics of icing on regional power overhead lines, Meet the needs of power transmission lines planning,survey and design,production and operation and maintenance, rely on the representative artificial ice observation station set up in the high altitude mountain area above 4 000 m in the northwest of Sichuan province of Hengduan mountains,The meteorological observation and research on the icing of overhead lines during eight ice observation years were carried out,Through qualitative analysis and quantitative calculation of the acquired data,The characteristics of the types of icing and the characteristics of the ice density in the process of regional icing are mastered.