DocumentCode :
585920
Title :
The transmission characteristics of gas insulated lines (GIL) over long distance
Author :
Elnaddab, K. ; Haddad, A. ; Griffiths, H.
fYear :
2012
fDate :
4-7 Sept. 2012
Firstpage :
1
Lastpage :
5
Abstract :
In many cases, large renewable energy sources of electrical power such as offshore wind farms will need to be connected to existing onshore transmission networks. Several gigawatts of electrical power need to be transferred from the wind farms to the grid, which requires reliable, low loss and high transmission capacity networks. Gas Insulated Transmission Lines (GILs) have higher transmission capacities, low losses, and higher overload capacities than other cable technologies which are needed to transmit offshore generated power to the mainland. This paper gives an overview of existing GIL and explores the challenges for long distance applications. Furthermore, analytical and computer models have been developed to assess the suitability of GIL and quantify the voltage, current and power transfer characteristics of the GIL with length. The paper describes the computed results of voltage, current and power profiles for a case study GIL operating at 400 kV for lengths up to 500 km.
Keywords :
gas insulated transmission lines; offshore installations; power grids; renewable energy sources; wind power plants; GIL over long distance; electrical power; gas insulated lines; grid; high transmission capacity networks; large renewable energy sources; low loss transmission capacity networks; offshore generated power; offshore wind farms; onshore transmission networks; reliable transmission capacity networks; transmission characteristics; voltage 400 kV; Analytical models; Electricity; Europe; Gas insulated transmission lines; Impedance; Reactive power; Sulfur hexafluoride; Alternative Transmission Networks; GIL; Gas Insulated Transmission Lines;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Universities Power Engineering Conference (UPEC), 2012 47th International
Conference_Location :
London
Print_ISBN :
978-1-4673-2854-8
Electronic_ISBN :
978-1-4673-2855-5
Type :
conf
DOI :
10.1109/UPEC.2012.6398633
Filename :
6398633
Link To Document :
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