高海拔下特高压交流同塔双回输电线路导线电晕损失研究  

Study of corona loss of UHV AC double circuit transmission line on the same tower at high altitude area

作　　者：陈少帅 刘云鹏[1,3] 黄世龙[1] 周广洋 张重远[1] Chen Shaoshuai;Liu Yunpeng;Huang Shilong;Zhou Guangyang;Zhang Zhongyuan(Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense,North China ElectricPower University,Baoding 071003,Hebei,China;Maintenance Branch of State Grid Hebei Electric PowerCompany,Shijiazhuang 050070,China;State Key Laboratory of Alternate Electrical Power Systemwith Renewable Energy Sources,North China Electric Power University,Beijing 10206,China)

机构地区：[1]华北电力大学河北省输变电设备安全防御重点实验室,河北保定071003 [2]国网河北省电力有限公司检修分公司,石家庄050070 [3]华北电力大学新能源电力系统国家重点实验室,北京102206

出　　处：《电测与仪表》2019年第3期29-34,共6页Electrical Measurement & Instrumentation

基　　金：国家自然科学基金资助项目(51577069)

摘　　要：针对目前我国特高压交流同塔双回输电常用的8×LGJ-630/45导线,基于在西宁市平安县(2 200 m)搭建的特高压电晕笼,系统的研究了8×LGJ-630/45导线在干燥、中雨(6 mm/h)、大雨(12 mm/h)及湿导线的条件下的电晕损失,首次获得了实际高海拔点8×LGJ-630/45导线的电晕笼电晕数据。并以1 000 kV特高压交流同塔双回输电工程典型塔型为例,通过有限元计算软件仿真计算电晕笼内导线和实际线路导线表面电场强度,采用电晕损失等效法,计算了在高海拔地区导线的电晕损失,获得了同塔双回输电线路的电晕损失数据。为我国将来在高海拔地区建设特高压交流输电线路导线选型提供了参考依据。The research on corona loss in high altitude area of 8×LGJ-630 conductor which is commonly used in UHV AC double circuit transmission in the same tower is studied in this paper based on the UHV corona cage built in the Ping′an county(2 200 m),Xining City.The test condition includes dryness,moderate rain(6 mm/h),heavy rain(12 mm/h)and humidity.For the first time,the corona data of 8×LGJ-630/45 conductors in the corona cage at high altitude were obtained.Then,the electric field intensity of the corona cage wire and the actual line conductor is calculated through finite element method simulation,the corona loss of UHV AC double circuit transmission line in high altitude area is analyzed by the example of typical tower type of 1 000 kV UHV AC double circuit transmission line on the same tower with corona loss equivalent method.The corona data of double circuit transmission lines on the same tower at high altitude was obtained.It provides reference basis for the selection of UHV AC transmission lines in high altitude area in the future.

关 键 词：高海拔 电晕笼 电晕损失 交流特高压 同塔双回输电 

分 类 号：TM93[电气工程—电力电子与电力传动]