鲁固特高压直流输电线路黄河大跨越气象条件的确定

Determination of Meteorological Conditions for Lugu UHVDC Crossing the Yellow River

鲁固特高压直流输电线路,是外电入鲁继±660kV银东线、±800kV昭沂直流后的第3条直流输电通道,在山东境内跨越黄河,主跨越档距超过1300m,最高铁塔高度接近140m,设计阶段需按照大跨越设计。结合工程实际,重点介绍了黄河大跨越的气象条件选择,包含基本风速,设计冰厚,气温、雷暴日等参数的确定,可为后续工程的黄河大跨越设计工作提供参考。

Lugu UHVDC,as the third DC transmission channel after±660 kV Yindong and±800 kV Zhaoyi UHVDC transmission lines from external power to Shandong province,crossed the Yellow River.The main span was over 1 300 meters,and the highest tower height was close to 140 meters.The project was designed by large-crossing standard.Combined with the engineering practice,the selection of meteorological conditions was introduced by the paper,including basic wind speed,ice thickness,temperature,thunderstorm day and so on,which can provide design reference for the follow-up project of the large-span crossing.