Title :
Distortion of the Potential around HVDC Transmission Lines Caused by Corona Space Charge
Author :
Zhao, H. ; Fortin, S. ; Dawalibi, F.P.
Author_Institution :
Safe Eng. Services & Technol. Ltd., Quebec City, QC
Abstract :
This paper presents an analysis of the distortion of the electric scalar potential around HVDC transmission lines. An iterative method has been developed to solve Poisson´s equation for HVDC transmission line systems, accounting for the presence of space charges. The system can be in homopolar, bipolar or hybrid mode, and can include sky wires or non-corona conductors. The conductors in the bundles are treated individually and can have different corona onset gradient for positive and/or negative energized conductors. Different positive and negative ion mobilities and ion recombination in bipolar zones are all accounted for.
Keywords :
HVDC power transmission; Poisson equation; conductors (electric); corona; iterative methods; power transmission lines; space charge; HVDC transmission lines; Poisson equation; corona space charge; electric scalar potential; ion recombination; iterative method; negative ion mobilities; noncorona conductors; positive ion mobilities; sky wires; Conductors; Corona; Earth; Electric fields; HVDC transmission; Iterative methods; Poisson equations; Power transmission lines; Space charge; Wires;
Conference_Titel :
Power and Energy Engineering Conference, 2009. APPEEC 2009. Asia-Pacific
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-2486-3
Electronic_ISBN :
978-1-4244-2487-0
DOI :
10.1109/APPEEC.2009.4918286
