Title :
Electro-quasistatic field simulations based on a discrete electromagnetism formulation
Author :
Steinmetz, T. ; Helias, M. ; Wimmer, G. ; Fichte, L.O. ; Clemens, M.
Author_Institution :
Dept. of Electr. Eng., Univ. of Fed. Armed Forces Hamburg
fDate :
4/1/2006 12:00:00 AM
Abstract :
A finite-element formulation based on a discrete electromagnetism is developed to simulate electro-quasistatic fields on unstructured meshes. The presented formulation takes dielectric effects into account as well as nonlinear conductive effects. The implementation is based on discrete differential forms on an unstructured 3-D mesh. Numerical results of the simulation of a three dimensional high-voltage surge arrester consisting of linear and nonlinear materials are shown. An algebraic multigrid method is introduced as a preconditioner to nonstandard projected preconditioned conjugate-gradient linear system solver
Keywords :
arresters; conjugate gradient methods; electric fields; electromagnetism; finite element analysis; high-voltage engineering; 3D high-voltage surge arrester; conjugate-gradient linear system solver; discrete electromagnetism; electro-quasistatic fields simulations; finite element method; nonlinear conductive effects; time integration; unstructured 3D mesh; Arresters; Assembly; Computational modeling; Conducting materials; Conductivity; Dielectrics; Electromagnetic propagation; Finite element methods; Maxwell equations; Surges; Finite-element-method; discrete electromagnetism; electro-quasistatic-fields; time integration;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.872488
