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Implementation of the Type-2 Fuzzy Controller in PLC

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Abstract:

The main aim of the presented research work was to develop type-2 fuzzy logic controller, which by its own design should be “more intelligent” than type-1. Along with the intelligence it should provide better results in solving a particular problem. Type-2 fuzzy logic controller is not well-known and it is rarely used at present. The idea of type-2 fuzzy logic set was presented by Zadeh in 1975, shortly after the presentation of type-1 fuzzy set. At the beginning scientists and researchers worked on type-1. Only after developing type-1 the attention was directed towards the type-2. The first applications of type-2 fuzzy logic in control appeared in 2003. The fuzzy logic controller type-2 was tested experimentally by controlling a non-linear object: a shape memory alloy (SMA) actuator DM-01PL, made by Miga Motor company, which despite small size distinguishes itself by its 9 N strength. Comparison of experimental data of the fuzzy logic controller type-2 and type-1 clearly indicates the superiority of the former, particularly in reducing signal overshoots.

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Periodical:

Solid State Phenomena (Volume 164)

Pages:

95-98

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.164.95

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Online since:

June 2010

Authors:

Ireneusz Dominik

Keywords:

Programmable Logic Controller (PLC), SMA Actuator, Type-2 Fuzzy Controller

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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