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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Supervis?rio Inteligente de Processos na Id?stria do Petr?leo e G?s :Aplica??o em uma Coluna de Destila??o Simulada Integrada a Instrumenta??o Real

Barros, Thiago Medeiros 12 November 2012 (has links)
Made available in DSpace on 2014-12-17T14:55:08Z (GMT). No. of bitstreams: 1 ThiagoMB_DISSERT.pdf: 1745996 bytes, checksum: af67dc28800011b16eb3931959630ac2 (MD5) Previous issue date: 2012-11-12 / Funda??o Norte-Riograndense de Pesquisa e Cultura / The need to implement a software architecture that promotes the development of a SCADA supervisory system for monitoring industrial processes simulated with the flexibility of adding intelligent modules and devices such as CLP, according to the specifications of the problem, it was the motivation for this work. In the present study, we developed an intelligent supervisory system on a simulation of a distillation column modeled with Unisim. Furthermore, OLE Automation was used as communication between the supervisory and simulation software, which, with the use of the database, promoted an architecture both scalable and easy to maintain. Moreover, intelligent modules have been developed for preprocessing, data characteristics extraction, and variables inference. These modules were fundamentally based on the Encog software / A necessidade de desenvolver uma arquitetura de software que promovesse o desenvolvimento de supervis?rio SCADA para monitora??o de processos industriais simulados, com flexibilidade de agregar m?dulos inteligentes e equipamentos como CLP, de acordo com as especifica??es do problema, foi a for?a motriz desse trabalho. No presente estudo foi desenvolvido um supervis?rio inteligente sobre uma simula??o de uma coluna de destila??o modelada no Unisim. Foi utilizado como comunica??o entre o supervis?rio e o software de simula??o o OLE Automation, o qual, junto ao uso de banco de dados, promoveu uma arquitetura de f?cil manuten??o e escal?vel. Foram desenvolvidos ainda m?dulos inteligentes para pr?processamento, extra??o de caracter?sticas dos dados e infer?ncia de vari?veis. Estes m?dulos tiveram como base principal o software Encog.
2

Ambiente de simula??o h?brido integrando hysys e rede industrial Foundation Fieldbus aplicado ao controle de uma coluna de destila??o

Costa, Bruno Xavier da 11 March 2011 (has links)
Made available in DSpace on 2014-12-17T14:55:51Z (GMT). No. of bitstreams: 1 BrunoXC_DISSERT.pdf: 1188084 bytes, checksum: 9f335fff2b0475dfa1b67655e6d44e2f (MD5) Previous issue date: 2011-03-11 / The main purpose of this work is to develop an environment that allows HYSYS R chemical process simulator communication with sensors and actuators from a Foundation Fieldbus industrial network. The environment is considered a hybrid resource since it has a real portion (industrial network) and a simulated one (process) with all measurement and control signals also real. It is possible to reproduce different industrial process dynamics without being required any physical network modification, enabling simulation of some situations that exist in a real industrial environment. This feature testifies the environment flexibility. In this work, a distillation column is simulated through HYSYS R with all its variables measured and controlled by Foundation Fieldbus devices / O principal objetivo deste trabalho ? desenvolver um ambiente que permite a comunica??o do simulador de processos qu?micos HYSYS R com medidores e atuadores de uma rede industrial Foundation Fieldbus. O ambiente ? considerado h?brido por possuir uma parte real (a rede industrial) e uma parte simulada (o processo) com os sinais de controle e medi??o sendo reais. O ambiente ? bastante flex?vel, permitindo a reprodu??o de diversas din?micas t?picas de processos industriais sem a necessidade de altera??o na rede f?sica, possibilitando gerar diversas situa??es existentes em um ambiente industrial real. No presente trabalho, a din?mica utilizada ? de uma coluna de destila??o, simulada no HYSYS R, com suas vari?veis medidas e controladas pelos dispositivos da rede industrial Foundation Fieldbus
3

Controle Robusto Aplicado a Conversor Buck-Boost em Sistemas Fotovoltaicos

Carvalho Neto, Jo?o Teixeira de 30 July 2012 (has links)
Made available in DSpace on 2014-12-17T14:56:09Z (GMT). No. of bitstreams: 1 JoaoTCN_DISSERT.pdf: 3199747 bytes, checksum: e80bdfe5ca1e9afb305fbbd4d3a99259 (MD5) Previous issue date: 2012-07-30 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The need to implement a software architecture that promotes the development of a SCADA supervisory system for monitoring industrial processes simulated with the flexibility of adding intelligent modules and devices such as CLP, according to the specifications of the problem, it was the motivation for this work. In the present study, we developed an intelligent supervisory system on a simulation of a distillation column modeled with Unisim. Furthermore, OLE Automation was used as communication between the supervisory and simulation software, which, with the use of the database, promoted an architecture both scalable and easy to maintain. Moreover, intelligent modules have been developed for preprocessing, data characteristics extraction, and variables inference. These modules were fundamentally based on the Encog software / A necessidade de desenvolver uma arquitetura de software que promovesse o desenvolvimento de supervis?rio SCADA para monitora??o de processos industriais simulados, com flexibilidade de agregar m?dulos inteligentes e equipamentos como CLP, de acordo com as especifica??es do problema, foi a for?a motriz desse trabalho. No presente estudo foi desenvolvido um supervis?rio inteligente sobre uma simula??o de uma coluna de destila??o modelada no Unisim. Foi utilizado como comunica??o entre o supervis?rio e o software de simula??o o OLE Automation, o qual, junto ao uso de banco de dados, promoveu uma arquitetura de f?cil manuten??o e escal?vel. Foram desenvolvidos ainda m?dulos inteligentes para pr?processamento, extra??o de caracter?sticas dos dados e infer?ncia de vari?veis. Estes m?dulos tiveram como base principal o software Encog

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