Search Results - "Jose do Prado, Afonso"
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1
Sparse matrices for transient simulations with computing memory reduction
Published in Electric power systems research (01-06-2020)“…•Sparse matrices are introduced in numerical routines applied to simulate the propagation of electromagnetic transient phenomena.•The main interest is to…”
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Journal Article -
2
Laboratory Tests with Model Based on π Circuits Considering the Introduction of Branches Composing by RL Parallel Elements
Published in 2018 IEEE International Telecommunications Energy Conference (INTELEC) (01-10-2018)“…For simple transmission line models, it can be applied π circuit cascades. This type of circuits was applied for composing a physical model that has been…”
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Conference Proceeding -
3
Proposal of an alternative transmission line model for symmetrical and asymmetrical configurations
Published in International journal of electrical power & energy systems (01-10-2011)“…► Development of a frequency-dependent transmission line model in the state space. ► Formulation of a three-phase representation. ► Extending the formulation…”
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Journal Article -
4
A New DSP-Based Physical Layer Encryption Technique Applied to Passive Optical Networks
Published in 2018 20th International Conference on Transparent Optical Networks (ICTON) (01-07-2018)“…Point-to-multipoint architecture poses serious security problems to passive optical networks (PONs). In this paper, we propose the use of a new digital signal…”
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Conference Proceeding -
5
Modified routine for decreasing numeric oscillations at associations of lumped elements
Published in Electric power systems research (01-07-2014)“…•Some changes in the numeric trapezoidal integration are analyzed for applications considering π circuits.•Each π circuit is analyzed independently and the…”
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Journal Article -
6
All-optical Spectral Shuffling Applied to 16-QAM Signals
Published in 2019 SBFoton International Optics and Photonics Conference (SBFoton IOPC) (01-10-2019)“…All-optical spectral shuffling (AOSS) is a recently proposed physical layer encryption technique. In AOSS, multiple input signals are split in several spectral…”
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Conference Proceeding -
7
All-Optical Spectral Shuffling of Signals Traveling through Different Optical Routes
Published in 2019 21st International Conference on Transparent Optical Networks (ICTON) (01-07-2019)“…A recent proposed physical layer encryption technique uses an all-optical setup based on spatial light modulators to split two or more wavelength division…”
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Conference Proceeding -
8
Modal Transformation Analyses for Double Three-Phase Transmission Lines
Published in IEEE transactions on power delivery (01-07-2007)“…Eigenvector and eigenvalue analyses are carried out for double three-phase transmission lines, studying the application of a constant and real phase-mode…”
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Journal Article -
9
Effect and behavior of lightning on composite material structures used in aircraft
Published in 2022 International Conference on Electromagnetics in Advanced Applications (ICEAA) (05-09-2022)“…This project focuses on performing computer simulations to estimate the effects of lightning on aircrafts and its interference in the on-board electronic…”
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Conference Proceeding -
10
Numerical Errors Reduction in Transient Simulations with Resistor Applications
Published in 2022 International Conference on Electromagnetics in Advanced Applications (ICEAA) (05-09-2022)“…It has been investigated about the best parameters to simulate transmission lines using a simple numeric model and taking into consideration the stability and…”
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Conference Proceeding -
11
Minimization of Gibb's oscillations in transients' simulations using damping resistance
Published in 2016 Progress in Electromagnetic Research Symposium (PIERS) (01-08-2016)“…Considering simulations of electromagnetic transients and searching for better results, it is investigated the limits of the change of the representation of…”
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Conference Proceeding -
12
Step by step analyses of Clarke's matrix correction procedure for untransposed three-phase transmission line cases
Published in IEEE PES General Meeting (01-07-2010)“…The correction procedure for Clarke's matrix, considering three-phase transmission line analyzes, is analyzed step by step in this paper, searching to improve…”
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Conference Proceeding -
13
Simulations of electromagnetic transients in a transmission line using state variables
Published in 2008 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (01-08-2008)“…Transmission lines can be represented by a set of pi circuits. These circuits can be modeled by state variables and solved using trapezoidal integration. This…”
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Conference Proceeding -
14
The flashover phenomenon: an analysis with influence of the thickness of the layer pollution of the high voltage polluted insulators
Published in Conference record of IEEE International Symposium on Electrical Insulation (1994)“…This paper shows the results of the analysis of the dynamic behaviour of the flashover phenomenon on the high voltage polluted insulators gotten from a…”
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Conference Proceeding Journal Article -
15
Electromagnetic transient simulations for undergraduate students using a low complexity numeric routine
Published in IEEE PES General Meeting (01-07-2010)“…This paper presents a mathematical model to simulate and analyze electromagnetic transients in transmission lines using a mono-phase representation of these…”
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Conference Proceeding -
16
Asymmetric transmission line analyses based on a constant transformation matrix
Published in 2008 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (01-08-2008)“…The application of modal transformation models for transmission lines have been analyzed extensively because in mode domain there are facilities in…”
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Conference Proceeding -
17
Modal transformation applied to double three-phase transmission lines
Published in 2004 IEEE/PES Transmision and Distribution Conference and Exposition: Latin America (IEEE Cat. No. 04EX956) (2004)“…Double three-phase transmission lines are analyzed in this paper using a modal transformation model. The main attribute of this model is the use of a single…”
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Conference Proceeding