Desenvolvimento de uma metodologia de interpretação de análise de gases dissolvidos em óleo para transformadores de potência usando lógica Fuzzy
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2017-05-25
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Universidade Federal de Goiás
Resumo
This work have its main theme on the maintenance in Power Transformers in
energy substations. Power Transformers have great importance in power transmission and
distribution systems. In addition to being essential to perform the transformation between
diferent levels of electrical voltage from generation to consumption, the cost of these
equipments represents a considerable part of the investment in the system. A failure in a
transformer can compromise the supply of electricity to an entire region of the city, which
represents a lack of billing and fines to the power distribution company, as well as the repair
costs of the equipment that failed.
In this dissertation one of the main techniques used to diagnose power
transformers using the Dissolved Gas Analysis (DGA) are discussed, as well as the use of
Fuzzy Logic in conjunction with the diferente analysis techniques. The differential of this
work is the development of a computational tool that allows the grafical visualization of
diagnosis evolution for each equipment over time and provides a final result by a flowchart
that considers all diagnosis of the traditional techniques approached with application of Fuzzy
Logic.
The result obtained is the development of a software that implements the proposed
methodology and graphically presents the diagnostics of each equipment present in the
company’s database. The software allows the analysis of the current operational state of the
equipment and his evolution over time, subsidizing the decision of the maintenance
professional regarding maintenance in the equipment.
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Citação
SILVA, T. H. V. Desenvolvimento de uma metodologia de interpretação de análise de gases dissolvidos em óleo para transformadores de potência usando lógica Fuzzy. 2017. 93 f. Dissertação (Mestrado em Engenharia Elétrica e da Computação) - Universidade Federal de Goiás, Goiânia, 2017.