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Type: Artigo
Title: Implementation and tuning of a fuzzy-pid control system via fieldbus communication
Title Alternative: Implementação e sintonia de um sistema de controle fuzzy-pid utilizando comunicação Fieldbus
Author: Silva, F. V.
Fileti, A. M. F.
Menezes, M. R.
Franco, I. C.
Abstract: 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
Subject: Sistemas fuzzy
Country: Brasil
Editor: Universidade Federal de Viçosa/Departamento de Química
Rights: Aberto
Identifier DOI: 10.18540/jcecvl3iss7pp0889-0898
Date Issue: 2017
Appears in Collections:FEA - Artigos e Outros Documentos
FEQ - Artigos e Outros Documentos

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