• Flávio Vasconcelos Silva UNICAMP
  • Ana Maria Frattini Fileti UNICAMP
  • Mauro Renault Menezes FEI University
  • Ivan Carlos Franco Centro Universitário da FEI



fieldbus, fuzzy controller, tuning, PID controller


In research applications is very important to have a flexible automation structure for different plant conditions with a large flow of information. To satisfy real-time requirements a communication technique based in fieldbus network was used to interconnect devices in an intelligent distributed control system. Using this structure, an experimental tuning for fuzzy-PID controller based in scaling gains from a well-tuned conventional PID controller was studied in this work. Due to difficulties involving fuzzy controllers tuning (expert knowledge, adjustments in rules, membership functions and gains) it is recommended to develop a tuning procedure, which will greatly reduce the time of design. From the gains of a well-tuned conventional PID controller a hybrid velocity/position fuzzy-PID controller was designed. Experimental tests were carried out for level control in a tank system under different disturbances in set point values. Tuning performance of different conventional and fuzzy-PID structures were evaluated with respect to their functional behaviors (overshoot, rise time and ISE criterion). Results obtained showed that fuzzy controller structure has a great potential for application even when it is possible to implement a conventional PID controller. It is also observed that there is saturation of the manipulated variable for the conventional PID controller which does not occur in the fuzzy-PID controller.


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Author Biography

Ivan Carlos Franco, Centro Universitário da FEI

Possui graduação em Engenharia Química pela Universidade Estadual do Oeste do Paraná – UNIOESTE (2003); Mestrado em Engenharia Química na área de desenvolvimento de processos químicos pela Universidade Estadual de Campinas DPQ/FEQ/UNICAMP (2007); Capacitação em Gerenciamento de Projetos pela Universidade Estadual de Campinas – UNICAMP (2008) e Doutorado em Engenharia Química pela Faculdade de Engenharia Química da Universidade Estadual de Campinas – UNICAMP (2012). Atuou de 2012 a 2014 como pesquisador colaborador no LCAP: Laboratório de Controle e Automação de Processos, DESQ/FEQ/UNICAMP e de 2014 a 2015 como Professor Doutor I MS3.1 na Faculdade de Engenharia de Alimentos da UNICAMP. Atualmente é Professor Adjunto I no Centro Universitário da FEI e pesquisador colaborador no LCAP/ DESQ/FEQ/UNICAMP. Tem experiência na área de Engenharia Química, com ênfase em Reatores Poliméricos, Modelagem e Simulação e Controle e Automação, atuando principalmente nos seguintes temas: polimerização via radical livre controlado, RAFT, Comunicação OPC, CLP, refrigeração industrial, IA (lógica fuzzy e neuro-fuzzy e redes neurais), Identificação de Sistemas, Controle e instrumentação.




How to Cite

Silva, F. V., Fileti, A. M. F., Menezes, M. R., & Franco, I. C. (2017). IMPLEMENTATION AND TUNING OF A FUZZY-PID CONTROL SYSTEM VIA FIELDBUS COMMUNICATION. The Journal of Engineering and Exact Sciences, 3(7), 0889–0898.



Simulation, Optimization and Process Control

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