Title :
Finite Element Analysis of Charge Injection and Transport in a Dielectric Liquid
Author :
Lee, Se-Hee ; Sullivan, Francis O. ; Park, Il-Han ; Zahn, Markus ; Pettersson, Leif ; Liu, Rongsheng ; Hjortstam, Olof ; Jaksts, Albert ; Auletta, Tommaso ; Gafvert, Uno
Author_Institution :
Korea Electrotechnol. Res. Inst., Changwon
Abstract :
Unipolar and bipolar space charge injection and propagation is analyzed under simplified linear and Fowler-Nordheim charge injection conditions for parallel plane or needle-sphere electrodes stressed by a step voltage. To verify our finite element numerical method, we first tested parallel plane electrodes with a simplified linear charge injection law for unipolar space charge propagation that showed good agreement with older closed form theoretical analysis. Finally, we analyzed tip-sphere electrodes for bipolar space charge propagation including Langevin recombination using finite element analysis.
Keywords :
dielectric liquids; electrodes; finite element analysis; space charge; Fowler-Nordheim charge injection; Langevin recombination; bipolar space charge; dielectric liquid; finite element analysis; linear charge injection; needle-sphere electrodes; parallel plane electrodes; space charge injection; space charge transport; tip-sphere electrodes; unipolar space charge; Dielectric liquids; Electric potential; Electrodes; Electromagnetic analysis; Finite element methods; Information analysis; Permittivity; Poisson equations; Space charge; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2006 IEEE Conference on
Conference_Location :
Kansas City, MO
Print_ISBN :
1-4244-0546-7
Electronic_ISBN :
1-4244-0547-5
DOI :
10.1109/CEIDP.2006.312078
