Electromagnetic Transients Modeling In Power
Systems Using The Finite Element Technique
Author(s)
I. Juric-Grgic, R. Lucic & M. Kurtovic
Abstract
This paper presents a new method when modeling electromagnetic transients in a
power system in the time domain, based on the finite element technique. Each
element of the power system under consideration, such as the synchronous
generator, transformer, transmission line, circuit breaker, etc. is modeled as a
finite element. In the case of a large power system the size of the problem can be
effectively reduced using a special finite element obtained by the Thevenin
equivalent. With such an approach, elegant modeling of transient behavior of a
power system can be carried out.
1 Introduction
Electromagnetic transients analysis is the essential part of power system analysis
in order to predict power system behavior under sudden changes. At this moment
there are several numerical methods [1], which are used to do power system
analysis. Question is, is there any need for the new one? In our opinion, the
answer is affirmative, especially if it is possible to make such algorithm, which
will be effective, simple and versatile.
The concept of the finite element technique up to now used for
electromagnetic field problems can be used in power system analysis. Electrical
network with lumped and distributive parameters can be considered as a set of
"finite elements" [2].
Consequently, each part of electric power system such as generator,
transformer transmission line, load etc. can be considered as a "finite elements".
Differential equations describing each element of power system (generator,
transformer transmission line, load etc.) using appropriate procedure (theta
method as a natural generalization of the backward difference, mid-difference
Keywords
Related Book
Other papers in this volume
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