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Master's Dissertation
DOI
10.11606/D.18.2015.tde-27082015-154834
Document
Author
Full name
Thiago Samuel Bonfin
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2015
Supervisor
Committee
Silva, Ivan Nunes da (President)
Cagnon, José Ângelo
Silva, Jorge Luiz e
Title in Portuguese
Sistema especialista para análise integrada de respostas advindas de ensaios experimentais executados em transformadores de potência
Keywords in Portuguese
Falhas em transformadores
Métodos de avaliação
Sistemas inteligentes
Transformadores de potência
Abstract in Portuguese
No contexto metodológico desse trabalho, foram desenvolvidas as tecnologias lógicas, baseadas em arquiteturas de sistemas inteligentes, que auxiliem nos diagnósticos de avarias em transformadores de transmissão. O sistema desenvolvido tem como dados de entrada os resultados de ensaios de isolação, de relação de transformação, do fator de potência da isolação, de ensaios de tensão induzida, além de outros e, por meio de técnicas de inferência, indicarão a existência de possíveis avarias que devem ser averiguadas (de forma mais detalhada) antes de se retornar o transformador ao serviço. A particularidade que caracteriza a inovação sobre este assunto está justamente na elaboração de um novo ferramental, a ser disponibilizado por meio de um software inteligente de suporte à decisão, o qual produzirá respostas que permitirão o completo diagnóstico de falhas e avarias em transformadores de transmissão submetidos a esforços eletromagnéticos severos. As respostas serão produzidas a partir da análise integrada de resultados advindos de módulos inteligentes incumbidos de apoiar os diversos ensaios a serem realizados no equipamento. Assim, será possível estimar, inclusive, qual o momento de se proceder com a manutenção preventiva no equipamento.
Title in English
Expert system for integrated analysis of responses from experimental tests performed in power transformers
Keywords in English
Evaluation methods
Intelligent systems
Power transformers
Transformers failures
Abstract in English
In methodological context of this work, the logical technologies were developed based on smart systems architectures, which help in diagnosis of faults in transmission transformers. The developed system has as data input the results of insulation tests, the transformation ratio of the insulation power factor of induced voltage test, and others, and by inference techniques, indicate the existence of possible faults that must be ascertained (in more detail) before the processor returns to service. The special featuring innovation on this subject is exactly in the drafting of a new tooling, to be made available through intelligent decision support software, which will produce answers that will allow the full fault diagnosis and failure in transmission submitted transformers the severe electromagnetic efforts. The answers will be produced from the integrated analysis of results arising from intelligent modules responsible for assisting the various tests to be performed on the equipment. Thus, you can estimate, even when it's time to proceed with preventive maintenance on the equipment.
 
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Thiago.pdf (8.76 Mbytes)
Publishing Date
2015-09-02
 
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