IRACI MARTINEZ PEREIRA GONCALVES
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Artigo IPEN-doc 27844 Monitoring system for an experimental facility using GMDH methodology2021 - PEREIRA, IRACI M.; MORAES, DAVI A.This work presents a Monitoring System based on the GMDH - Group Method of Data Handling methodology applied in an Experimental Test Facility. GMDH is a combinatorial multi-layer algorithm in which a network of layers and nodes is generated using a number of inputs from the data stream being evaluated. The GMDH method is based on an underlying assumption that the data can be modeled by using an approximation of the Volterra Series or Kolmorgorov-Gabor polynomial. The Fault Test Experimental Facility was designed inspired in a PWR nuclear power plant and is composed by elements that correspond to the pressure vessel, steam generator, pumps of the primary and secondary reactor loops. The nuclear reactor core is represented by an electrical heater with different values of power. The exper-imental plant is fully instrumented with sensors and actuators. The Fault Test Experimental Facility can be operated to generate normal and faulty data. These failures can be added initially with small magnitude, and their magnitude being increasing gradually in a controlled way. The database will interface with the plant supervisory system SCADA (Super-visory Control and Data Acquisition) that provides the data through standard interface.Artigo IPEN-doc 11056 Monitoring an experimental reactor using the group method of data handling approach2005 - GONCALVES, I.M.; TING, D.K.S.; FERREIRA, P.B.; UPADHYAYA, B.R.Artigo IPEN-doc 09400 Sistema de aquisicao de dados do reator IEA-R12002 - MONTEIRO, P.R.B.; GONCALVES, I.M.P.Artigo IPEN-doc 16123 Estudo comparativo entre GMDH e redes neurais aplicados na monitoração de sensores2010 - BUENO, ELAINE I.; GONCALVES, IRACI M. P.; TEIXEIRA e SILVA, ANTONIOArtigo IPEN-doc 16524 Time response measurements of the Angra 1 nuclear power plant using direct and indirect methodologies2010 - PEREIRA, IRACI M.; SANTOS, ROBERTO C. dos; LOPES, WAGNER J. dos R.; NAPOLITANO, OLIVIO da C.Artigo IPEN-doc 17409 Group method of data handling and neural networks applied in temperature sensors monitoring2011 - BUENO, ELAINE I.; PEREIRA, IRACI M.; TEIXEIRA e SILVA, ANTONIOArtigo IPEN-doc 19110 GMDH and artificial neural network applied in an experimental reactor sensors monitoring2012 - BUENO, ELAINE I.; PEREIRA, IRACI M.; TEIXEIRA e SILVA, ANTONIO