Corona Loss Characteristics of UHV AC Multi-bundled Conductors at High Altitude of 4 300 m

HE Wangling; WAN Baoquan; LIU Yunpeng; LIU Jiqiu; LYU Duo; GAN Zheyuan; LIU Xingfa; LIU Jintian

doi:10.13334/j.0258-8013.pcsee.240903

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Corona Loss Characteristics of UHV AC Multi-bundled Conductors at High Altitude of 4 300 m

更新时间：2026-01-20

- Corona Loss Characteristics of UHV AC Multi-bundled Conductors at High Altitude of 4 300 m
- Vol. 45, Issue 19, Pages: 7776-7784(2025)
- 作者机构：
  
  1. 武汉大学新型电力系统与国际标准研究院,湖北省,武汉市,430072
  2. 电网环境保护全国重点实验室(中国电力科学研究院有限公司),湖北省,武汉市,430074
  3. 河北省绿色高效电工新材料与设备重点实验室(华北电力大学),河北省,保定市,071003
  4. 国家电网有限公司, 北京市西城区,100031
- 作者简介：
- 基金信息：
- DOI：10.13334/j.0258-8013.pcsee.240903
  CLC：
- Published：2025
- 稿件说明：
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HE Wangling, WAN Baoquan, LIU Yunpeng, et al. Corona Loss Characteristics of UHV AC Multi-bundled Conductors at High Altitude of 4 300 m[J]. 2025, 45(19): 7776-7784.
DOI：

HE Wangling, WAN Baoquan, LIU Yunpeng, et al. Corona Loss Characteristics of UHV AC Multi-bundled Conductors at High Altitude of 4 300 m[J]. 2025, 45(19): 7776-7784. DOI： 10.13334/j.0258-8013.pcsee.240903.

摘要

电晕损失是特高压交流(ultra high voltage alternating current，UHVAC)输电线路架设的重要技术指标。高海拔地区气压低，空气稀薄、紫外线强，导线更容易起晕，电晕损失控制也更为重要。目前尚无4 000 m以上高海拔条件下UHVAC工程用多分裂导线的电晕损失研究，该文在海拔4 300 m西藏羊八井试验基地，基于特高压大电晕笼，利用自主研发的集成化光电式电晕损失测量系统，开展8×LGJ1000，8×LGJ1250和10×LGJ630这3种典型导线在干燥、淋雨、湿润条件下的电晕损失特性研究，获得不同场强条件下的电晕损失值，分析极高海拔下降雨和场强对导线电晕损失的影响规律；而后，以1 000 kV特高压交流单回输电工程典型塔型为例，采用电晕损失等效法，评估在4 300 m高海拔地区条件下输电线路导线的电晕损失，研究成果可以为我国极高海拔地区特高压交流输电线路的建设提供一定参考。

Abstract

Corona loss is an important influence factor for ultra-high voltage alternating current (UHVAC) transmission line construction. At high altitude

due to the low air pressure and the strong ultraviolet light

the corona discharge around the energized conductors is more likely to occur

and the corona loss control has become very important. At present

there are little research on corona loss level of multi-bundled conductors over 4000 meters above sea level

where the conductor can be used in UHV AC transmission project. In this paper

the corona loss characteristics of three important conductors

8×LGJ1000

8×LGJ1250

and 10×LGJ630

are investigated by using the integrated photoelectric corona loss measurement system under dry

rain

and wet conditions. The tests are based on the UHV corona cage in Yangbajing Test Base in Tibet at an altitude of 4 300 m. The corona loss performances with different electric field intensity are obtained

and the influence of rainfall and electric field intensity on the corona loss is analyzed. After that

taking the 1 000 kV UHV single circuit transmission project for instance

the corona loss levels of different conductor bundles at 4 300 m altitude of are calculated. The research results can provide reference for the construction of UHV AC transmission lines in the high-altitude area of China.

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电网环境保护全国重点实验室(中国电力科学研究院有限公司)

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