Detecção de interface em tanques de petróleo usando transmissores de nível e controladores Fuzzy

• Ano de defesa: 2009
• Autor(a) principal: Lacerda, Geraldo de Moura
• Orientador(a): Salazar, Andrés Ortiz
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Rio Grande do Norte
• Programa de Pós-Graduação: Programa de Pós-Graduação em Ciência e Engenharia do Petróleo
• Departamento: Pesquisa e Desenvolvimento em Ciência e Engenharia de Petróleo
• País: BR
• Palavras-chave em Português: Detecção de Interface; Transmissores de nível; Controladores Fuzzy
• Palavras-chave em Inglês: Interface detection; Level transmitters; Fuzzy controllers
• Área do conhecimento CNPq: CNPQ::CIENCIAS EXATAS E DA TERRA
• Link de acesso: https://repositorio.ufrn.br/jspui/handle/123456789/12913

This work presents a proposal to detect interface in atmospheric oil tanks by installing a differential pressure level transmitter to infer the oil-water interface. The main goal of this project is to maximize the quantity of free water that is delivered to the drainage line by controlling the interface. A Fuzzy Controller has been implemented by using the interface transmitter as the Process Variable. Two ladder routine was generated to perform the control. One routine was developed to calculate the error and error variation. The other was generate to develop the fuzzy controller itself. By using rules, the fuzzy controller uses these variables to set the output. The output is the position variation of the drainage valve. Although the ladder routine was implemented into an Allen Bradley PLC, Control Logix family it can be implemented into any brand of PLCs