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Fractional-order PID design: Towards transition from state-of-art to state-of-use
Amélie Chevalier1, Clovis Francis2, Cosmin Copot1
1Department of Electrical Energy, Metals, Mechanical Constructions and Systems, Ghent University, Technologiepark 914, 9052 Gent, Belgium.
Abstract:
This paper presents a new tuning method for fractional-order (FO)PID controllers to simplify current tuning and make FOPID controllers more convenient for industry, i.e. facilitate transition from state-of-art to state-of-use. The number of tuning parameters is reduced from five to three based on popular specification settings for PID controllers without the need for reduced process models which introduce modeling errors. A test batch of 133 simulated processes and two real-life processes are used to test the presented method. A comparative study between the new method and the established CRONE controller, quantifies the performance. The conclusion states that the new method gives fractional controllers with similar performances as the current methods but with a significantly decreased tuning complexity making FOPID controllers more acceptable to industry.
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