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

fYear

2006

fDate

15-18 Oct. 2006

Firstpage

129

Lastpage

132

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CEIDP.2006.312078

Filename

4105386