Physical model of transmission lines with additional ... · Physical model of transmission lines...
Transcript of Physical model of transmission lines with additional ... · Physical model of transmission lines...
Physical model of transmission lines
with additional branches to introduce
the influence of the frequency
Code: 19.010
Aghatta Cioquetta Moreira
Thainá Guimarães Pereira
Luis Henrique Jús
Melissa de Oliveira Santos
André Alves Ferreira
Afonso José do Prado
UNESP, São João da Boa Vista, Brazil
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Working with other students, a physical model of transmission line is being developed (general objective) and it will be adapted to represent PLC (Power Line Communication) systems (specific objective).
Objective
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Transmission line theory: power
transmission (low frequency, high
power) or signal transmission (high
frequency, low power);
They are waveguides;
Simple model: application of π circuits;
Introduction
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Classical π circuits: no influence of
frequency on the line parameters;
Modified π circuits: frequency influence;
A physical model is based on a
numerical model;
It is a cascade of π circuits;
Introduction
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It is a mono-phase circuit;
Concepts: wave propagation, numerical
simulations, electromagnetic transient
phenomena, signal transmission, power
transmission;
Physical model for testing two different
wave propagations
Introduction
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It is used a linear system:
The structures of B and x are:
Mathematical bases
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BuAxx
TL
B 001
Tnn vivivix 2211
The structure of the A matrix is:
Mathematical bases
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CGC
LLRL
CCGC
CCGC
LLR
A
200
11
011
0
11
001
The longitudinal part of π circuits are
changed.
Physical model
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R L
R0L0
R1
L1
R2
L2
Rn
Ln
Physical model
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PCB
Printed circuit board
SMD
Surface mount device
FPGA ?????
Application of two signals with
different frequencies.
Physical model of transmission lines;
Application of modified π circuits;
Simulations of propagation of signals
with different frequencies;
PLC (power line communication)???
Conclusions
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