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Master's Dissertation
DOI
https://doi.org/10.11606/D.3.2006.tde-17042006-105554
Document
Author
Full name
Luiz Pinheiro Cordovil da Silva
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2005
Supervisor
Committee
Santos, Josemir Coelho (President)
Almeida, Jose Carlos Juliano de
Nader, Gilder
Title in Portuguese
Transformador óptico por interferometria de luz branca para medição de altas tensões.
Keywords in Portuguese
alta tensão
fibras ópticas
instrumentação eletrônica
interferometria de luz branca
sensores ópticos
transformador óptico de potencial
Abstract in Portuguese
No presente trabalho é apresentada uma nova abordagem para medida de potenciais em altos níveis de tensão que utilizam sensores eletro-ópticos Pockels. Também descreve a aplicação da técnica de interferometria de luz branca em sistemas de alta tensão por fibras ópticas. Neste sistema a informação é codificada no espectro da luz, permitindo assim que a medida seja independente da potência óptica transmitida pelo link de fibras ópticas. Um protótipo foi construído e testado sob excitação de tensão a.c. até 20 kV em 60 Hz mostrando boa resposta e demonstrando a viabilidade deste método.
Title in English
Optical voltage transformers using white light interferometry for high voltage measurements.
Keywords in English
electronic instrumentation
high voltage
optical fibers
optical sensors
optical voltage transformers
white light interferometry
Abstract in English
A new approach to perform measurement of potentials in high voltage levels using electrooptical Pockels sensors is presented here. This work describes an application of the White Light Interferometry technique to a high voltage optical fiber measurement system. In this system the information is encoded in the spectrum of the light, allowing the measurement to be independent of the optical power transmitted by the optical fiber link. A prototype was built and tested under excitation of a.c. voltages up to 20 kV in 60 Hz showing good response and demonstrating the feasibility of this method.
 
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Dissertacao_Mestrado.pdf (851.33 Kbytes)
Publishing Date
2006-05-02
 
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