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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/74174
Title: 
Digital filtering of oscillations intrinsic to transmission line modeling based on lumped parameters
Author(s): 
Institution: 
  • Universidade Estadual de Campinas (UNICAMP)
  • Universidade Estadual Paulista (UNESP)
ISSN: 
0142-0615
Abstract: 
A correction procedure based on digital signal processing theory is proposed to smooth the numeric oscillations in electromagnetic transient simulation results from transmission line modeling based on an equivalent representation by lumped parameters. The proposed improvement to this well-known line representation is carried out with an Finite Impulse Response (FIR) digital filter used to exclude the high-frequency components associated with the spurious numeric oscillations. To prove the efficacy of this correction method, a well-established frequency-dependent line representation using state equations is modeled with an FIR filter included in the model. The results obtained from the state-space model with and without the FIR filtering are compared with the results simulated by a line model based on distributed parameters and inverse transforms. Finally, the line model integrated with the FIR filtering is also tested and validated based on simulations that include nonlinear and time-variable elements. © 2012 Elsevier Ltd. All rights reserved.
Issue Date: 
1-Jan-2013
Citation: 
International Journal of Electrical Power and Energy Systems, v. 44, n. 1, p. 908-915, 2013.
Time Duration: 
908-915
Keywords: 
  • Digital signal processing
  • Electromagnetic transients
  • FIR digital filter
  • Transmission lines
  • Correction method
  • Correction procedure
  • Digital filtering
  • Digital signals
  • Distributed parameter
  • Electro-magnetic transient
  • Electromagnetic transient simulation
  • Finite-impulse response
  • FIR digital filters
  • FIR filtering
  • Frequency-dependent
  • High frequency components
  • Line models
  • Lumped parameter
  • State equations
  • State-space models
  • Transmission line modeling
  • Electric lines
  • FIR filters
  • Impulse response
  • Inverse transforms
  • Transients
  • Transmission line theory
  • Computer simulation
Source: 
http://dx.doi.org/10.1016/j.ijepes.2012.08.050
URI: 
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/74174
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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