• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Master's Dissertation
DOI
https://doi.org/10.11606/D.18.2017.tde-31102017-104538
Document
Author
Full name
Enio Carlos Segatto
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 1999
Supervisor
Committee
Coury, Denis Vinicius (President)
Sato, Fujio
Tavares, Maria Cristina Dias
Title in Portuguese
Redes neurais artificiais aplicadas à proteção diferencial de transformadores de potência
Keywords in Portuguese
Detecção de Inrush
Proteção de transformadores de potência
Redes neurais artificiais
Abstract in Portuguese
Este trabalho apresenta uma aplicação de redes neurais artificiais (RNAs) na proteção diferencial de transformadores de potência, como um método para distinguir formas de onda que podem confundir a operação do relé. Vários fatores como, por exemplo, as situações de energização do transformador, podem causar uma má operação do dispositivo de proteção. Com o objetivo de melhoramento na proteção diferencial digital de transformadores de potência, desenvolveu-se um sistema completo de proteção, incluindo um dispositivo com base em RNAs, em substituição à filtragem harmônica dos sinais, existentes no algoritmo convencional. Com a referida adição de RNAs em um algoritmo completo de proteção diferencial de transformadores, obteve-se uma solução bastante precisa e eficiente, capaz de responder em um tempo reduzido, se comparada aos métodos convencionais.
Title in English
Artificial neural networks applied to the differential protection of power transformers
Keywords in English
not available
Abstract in English
This work presents an application of artificial neural networks (ANNs) in differential protection of transformers as an alternative method to distinguish among wave forms which can cause malfunction to the relay. One of the several factors that can cause malfunction is the inrush current present when the transfonner is energized. In order to improve the differential protection of the power transformers, the authors added a neural network routine to the conventional differential protection algorithm, in substitution to the filtering of the harmonic signals found on the traditional algorithm. By making this option, the authors obtained a more effective and precise solution, compared to the conventional methods.
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
Publishing Date
2017-10-31
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors
CeTI-SC/STI
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2024. All rights reserved.