Hybrid F.E.-wavelet method for nonlinear analysis of nonuniform MTL transients

Author

Barmada, S. ; Musolino, A. ; Raugi, M.

Author_Institution

Dipartimento Sistemi Elettrici ed Autom., Pisa Univ., Italy

Volume

36

Issue

4

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

977

Lastpage

981

Abstract

This paper deals with the numerical solution of nonuniform Transmission Lines (TL) with nonlinear loads. The method presented here is based on the combination of wavelet expansion and Finite Elements (FE) in space and time domain. By expanding voltages, currents and operators by means of wavelet functions, the TL equations are transformed into algebraic equations where the differential operator is represented by a matrix and the unknowns are the coefficients of the wavelet expansion of voltages and currents. The numerical efficiency of the method is tested by analyzing uniform, nonuniform lines and nonlinear loads. The results are compared with results obtained by means of different methods

Keywords

finite element analysis; matrix algebra; multiconductor transmission lines; transient analysis; transmission line theory; wavelet transforms; algebraic equations; differential operator; expansion coefficients; finite elements; hybrid FE/wavelet method; matrix; multiconductor transmission lines; nonlinear analysis; nonlinear loads; nonuniform MTL transients; nonuniform transmission lines; numerical solution; wavelet expansion; Convolution; Differential algebraic equations; Distributed parameter circuits; Finite element methods; Frequency domain analysis; Nonlinear equations; Power system transients; Transient analysis; Voltage; Wavelet domain;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.877605

Filename

877605