Improvement on the corona model of ultra high voltage alternating current transmission lines

2013 ◽  
Author(s):  
Jian Ming Li ◽  
Yu Zhang ◽  
Yi Wen ◽  
Li Wen
Keyword(s):  
High Voltage ◽  
Transmission Lines ◽  
Alternating Current ◽  
Current Transmission ◽  
Ultra High Voltage

The science of alternating current-induced corrosion: a review of literature on pipeline corrosion induced due to high-voltage alternating current transmission pipelines

2020 ◽  
Vol 38 (6) ◽  
pp. 463-472
Author(s):  
Ajit Kumar Thakur ◽  
Adarsh Kumar Arya ◽  
Pushpa Sharma
Keyword(s):  
High Voltage ◽  
Transmission Lines ◽  
Significant Risk ◽  
Alternating Current ◽  
Review Of Literature ◽  
Transmission Networks ◽  
Current Transmission ◽  
Pipeline Networks ◽  
Major Factors ◽  
Pipeline Corrosion

AbstractThe state of art in alternating current (AC)-induced corrosion in pipelines is reviewed. Growing pipeline networks and their co-location with high-voltage (HV) transmission networks have brought into focus the issue of induced AC corrosion on the pipeline networks. Induced AC corrosion may quickly and severely affect the integrity of pipeline networks, especially considering that a number of such pipelines are transporting huge quantities of hazardous fluids. Any breach in pipeline integrity due to AC corrosion may result in disastrous consequences. In the last 30 years, it has been established that the induced AC corrosion can affect the buried pipeline integrity severely. During operations, the resistive as well as inductive coupling with transmission lines pose a significant risk of pipeline corrosion. The literature is reviewed to put together various issues and factors responsible for AC-induced corrosion in pipelines. The various publications on induced AC corrosion are reviewed to identify characteristics of AC-induced corrosion and major factors that determine the severity and impact of AC-induced corrosion. The areas have been identified wherein scope exists for additional studies on AC corrosion.

Analysis of ice disasters on ultra-high-voltage direct-current transmission lines

2016 ◽  
Vol 86 (1) ◽  
pp. 203-217 ◽  
Author(s):  
Jiazheng Lu ◽  
Jun Guo ◽  
Jianping Hu ◽  
Li Yang ◽  
Tao Feng
Keyword(s):  
High Voltage ◽  
Direct Current ◽  
Transmission Lines ◽  
High Voltage Direct Current ◽  
Current Transmission ◽  
Ultra High Voltage

A Comparative Study of Ultra-Long Distance Transmission Technology

2013 ◽  
Vol 347-350 ◽  
pp. 1348-1352 ◽  
Author(s):  
Yu Gao ◽  
Jun Wen ◽  
Jia Liang Wen ◽  
Jing Wu ◽  
Xiao Xia Liu ◽  
...  
Keyword(s):  
High Voltage ◽  
Direct Current ◽  
Wave Length ◽  
Alternating Current ◽  
Long Distance ◽  
High Voltage Direct Current ◽  
Long Distance Transmission ◽  
Half Wave ◽  
Current Transmission ◽  
Ultra High Voltage

Therere two main methods for ultra-long distance transmission: half-wave length alternating current transmission and ultra high voltage direct current transmission. Its described in this paper that the working principle, and operational performance of both technology. In addition a comparison is made in areas of technology and performance including transmission capacity, reactive power compensation, stability and over-voltage. The parameters from the running project and theoretical prediction is used to make an economical comparison among the 1000kV half-wave length alternating current transmission and ±1000kV, ±800kV ultra high voltage direct current transmission.

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