NDLI: Comparison Of Two Methods For Modeling Large-Signal Alternating Magnetic Fields Using Finite-Elements

Content Provider	IEEE Xplore Digital Library
Author	Minnich, S.H. Tandon, S.C. Atkinson, D.R.
Copyright Year	1963
Abstract	As part of EPRI Project RP 1288-1 methods have been developed for applying finite element techniques in developing large generator equivalent circuit models. In earlier work, non-steady-state effects have been handled on a linearized basis, invoking the assumption of small signals. This paper describes more elaborate finite element techniques, which include magnetic non-linearities in non-steady-state calculations. The two methods compared are (a) the direct time-integration of the finite-element vector potential diffusion equation and (b) solution of the diffusion equation with phasor time dependence, assigning variable permeabilities in an iterative manner. Results of the two methods are compared using simple, slab geometry, but at flux density levels where gross non-linearities exist. These results are viewed as providinig cross-verification of the two procedures, and provide the basis for application of these techniques to generator analysis.
Starting Page	2952
Ending Page	2960
Page Count	9
File Size	2309749
File Format	PDF
ISSN	00189510
Volume Number	PAS-103
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1984-10-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic fields Finite element methods Signal generators Nonlinear equations Power system modeling Permeability Magnetic flux Magnetostatics Saturation magnetization Steady-state
Content Type	Text
Resource Type	Article
Subject	Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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