海拔4300m条件下750kv交流束导线电晕损耗特性研究

IF 2.6 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Wangling He, Jintian Liu, Baoquan Wan, Tao Zhao, Yunpeng Liu, Jilai Xu, Ke Zhang, Xiaojuan Li
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引用次数: 0

摘要

电晕损耗是影响特高压、特高压交流输电线路建设的重要技术因素。在高海拔地区,大气压力降低,紫外线增加,使导体更容易发生日冕。控制电晕损失更为重要。目前,海拔4000 m以上条件下750 kV特高压交流工程中多束导线的电晕损耗水平研究较少。本文以海拔4300 m的中国西藏羊八井大型电晕笼为基础,利用电晕损耗测量系统测量了6 × LGJ500、6 × LGJ630和8 × LGJ500导线在干燥、暴雨和湿润条件下的电晕损耗。以典型的750 kV超高压交流单回和双回输电线路为例,采用电晕损耗等效法对高海拔地区输电线路导线的电晕损耗进行了评估。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Study of Corona Loss Characteristics of 750 kV AC Bundle Conductors Under High-Altitude Location of 4300 M

Study of Corona Loss Characteristics of 750 kV AC Bundle Conductors Under High-Altitude Location of 4300 M

Study of Corona Loss Characteristics of 750 kV AC Bundle Conductors Under High-Altitude Location of 4300 M

Study of Corona Loss Characteristics of 750 kV AC Bundle Conductors Under High-Altitude Location of 4300 M

Study of Corona Loss Characteristics of 750 kV AC Bundle Conductors Under High-Altitude Location of 4300 M

Corona loss is an important technical factor for the construction of ultra-high voltage (UHV) and extra-high voltage (EHV) AC transmission lines. In high-altitude areas, the atmospheric pressure decreases and the ultraviolet rays increase, making it easier for the corona onset of conductors. The control of corona losses is even more essential. Currently, there is little research on the corona loss level of multiple bundle conductors for 750 kV EHV AC projects in high-altitude conditions above 4000 m. In the paper, based on the large corona cage in Yangbajing, Tibet, China, at an altitude of 4300 m, the corona losses of the 6 × LGJ500, 6 × LGJ630 and 8 × LGJ500 conductors were measured by the corona loss measurement system under conditions of dryness, heavy rain and wet conductors. By taking typical 750 kV EHV-AC single-circuit and double-circuit transmission lines as an example, the corona loss equivalent method was used to evaluate the corona loss of transmission line conductors at high altitudes.

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来源期刊
Iet Generation Transmission & Distribution
Iet Generation Transmission & Distribution 工程技术-工程:电子与电气
CiteScore
6.10
自引率
12.00%
发文量
301
审稿时长
5.4 months
期刊介绍: IET Generation, Transmission & Distribution is intended as a forum for the publication and discussion of current practice and future developments in electric power generation, transmission and distribution. Practical papers in which examples of good present practice can be described and disseminated are particularly sought. Papers of high technical merit relying on mathematical arguments and computation will be considered, but authors are asked to relegate, as far as possible, the details of analysis to an appendix. The scope of IET Generation, Transmission & Distribution includes the following: Design of transmission and distribution systems Operation and control of power generation Power system management, planning and economics Power system operation, protection and control Power system measurement and modelling Computer applications and computational intelligence in power flexible AC or DC transmission systems Special Issues. Current Call for papers: Next Generation of Synchrophasor-based Power System Monitoring, Operation and Control - https://digital-library.theiet.org/files/IET_GTD_CFP_NGSPSMOC.pdf
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