NDLI: Transient, finite element-boundary element methods for modeling high field effects in nonhomogeneous solid dielectrics

Content Provider	IEEE Xplore Digital Library
Author	Driga, M.D. Wu, A.
Copyright Year	1998
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA (Driga, M.D.)
Abstract	A novel transient Finite Element-Boundary Element (FE-BE) numerical code is presented. This FE-BE method code calculates electric field distributions in high voltage insulation systems with complex boundaries and with nonhomogeneous characteristics. The very accurate representation of the 3-D space distribution of electric fields is achieved by using, concomitantly, the finite and the boundary element methods-in time-thus eliminating the drawbacks characteristic to each of the methods when applied separately. The boundary element method (BEM) is applied to the lossless regions and the finite element method (FEM) is applied to the lossy and nonhomogeneous domains of the field. Undesirable phenomena, due to high voltage gradient, are usually localized at the onset. To accurately model them, separate temporal and spatial scales, different from the scale for regular discharges, are adopted. On the temporal side, a particularly small time step to accommodate the frequency is chosen. For the space, a rezoning capability is adopted to gain fine grid solution. The coarse grid solution is used to interpolate the boundary conditions for the newly created points in a recursive refinement process based on an adaptive procedure. Several practical examples of the transient modeling of high field effects are presented.
Starting Page	543
Ending Page	547
File Size	491643
Page Count	5
File Format	PDF
ISBN	0780342372
DOI	10.1109/ICSD.1998.709343
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-06-22
Publisher Place	Sweden
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Finite element methods Boundary element methods Capacitors Dielectrics Voltage Boundary conditions Power system modeling Insulation Modems Stress
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in