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Type: Artigo de periódico
Title: Modified routine for decreasing numeric oscillations at associations of lumped elements
Author: do Prado, AJ
Lessa, LD
Monzani, RC
Bovolato, LF
Pissolato, J
Abstract: Some changes in the application of the numeric trapezoidal integration are analyzed for applications considering pi circuits. It is considered numeric and computational proceedings for improving the numeric results obtained with associations of pi circuits. In numeric integration solutions of the linear systems, it is common to represent these associations of pi circuits by only one matrix. This representation introduces undesirable numeric oscillations in simulations of the dynamics of wave propagation in electrical systems. The proposed changes improve the results of application of cascades of pi circuits associated to the trapezoidal integration, avoiding that the numerical oscillations, or Gibb's oscillations, have high values and are slowly damped. For the carried out simulations, different number of pi circuits and voltage sources are checked, confirming the reduction of the influence of the numeric oscillations on the obtained results. (C) 2014 Elsevier B.V. All rights reserved.
Subject: Eigenvalues and eigenfuctions
Electromagnetic transient analyses
Linear systems
Numerical analysis
State space methods
Transmission lines
Country: Suíça
Editor: Elsevier Science Sa
Citation: Electric Power Systems Research. Elsevier Science Sa, v. 112, n. 56, n. 64, 2014.
Rights: fechado
Identifier DOI: 10.1016/j.epsr.2014.03.006
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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