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On-Line Model-Based stator fault and identification in induction motors
(Institute of Electrical and Electronics Engineers, 2009-11)
In this paper, a model-based strategy for statorinterturn short-circuit detection on induction motors is presented. The proposed strategy is based on the generation of a vector of specific residual using a state observer. ...
Hilbert-Huang transform based methodology for bearing fault detection
(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2018-05-16)
Rotating machinery is of great importance for manufacturing industry, and therefore huge investments for their acquisition are made every year. Machine preservation plays an important role in the exploitation of this ...
Interturn short-circuit fault diagnosis in PMSM with partitioned stator windings
(Institution of Engineering and Technology, 2020-12)
A new signal-based strategy for stator winding interturn short-circuit fault detection and isolation in permanent magnet synchronous machines (PMSM) is proposed. The strategy is based on an analysis of the midpoint voltage ...
A proposal for the diagnosis of incipient faults in power transformers using fuzzy logic techniques
(Praise Worthy PrizeItaly, 2022)
Desenvolvimento de aplicativo baseado no método de Duval para análise de gases em transformadores
(Universidade Tecnológica Federal do ParanáCornelio ProcopioBrasilEngenharia ElétricaUTFPR, 2016-06-02)
This work proposes the development of an application on the analysis of gases dissolved in mineral transformer oil, of all classes of voltage and power, the Duval Triangle method. Through simulations in the application, ...
A fuzzy logic proposal for diagnosis multiple incipient faults in a power transformer
(Corporación Universidad de la Costa, 2021)
Método do triângulo de Duval para análise dos óleos isolantes silicone e éster natural
(Universidade Tecnológica Federal do ParanáCornelio ProcopioBrasilEngenharia ElétricaUTFPR, 2017-06-08)
This work presents a study and application of the Duval Method for alternative insulation fluids. A tool for incipient faults diagnosis is developed. The properties of silicone oil and natural ester as dielectric fluids ...
Uma nova formulação fuzzy/bayesiana para detecção de ponto de mudança em séries temporais: aplicações na detecção de falhas incipientes.
(Universidade Federal de Minas GeraisUFMG, 2010-02-26)
This work presents a novel approach for incipient fault detection in dynamical systems which is based on a Fuzzy/Bayesian technique for change point detection in time series. The proposed change point detection technique ...