LAPSE:2019.0645
Published Article
LAPSE:2019.0645
Simple Alternatives to PID-Type Control for Processes with Variable Time-Delay
July 25, 2019
Process industries include chemicals, petrochemicals, pulp and paper, steel, minerals, food, and power generation industries. Although diverse, all of these share common dynamics in terms of continuous variables and rely on the same measurements, e.g., level, flow, temperature, and pressure. They also have common actuators, such as valves and pumps. Additionally, they have variable time delays from process dynamics, such as mixing effects, measurement lines, or wireless data communication protocols. Processes with variable time delay can often lead to poor performance and instability. This paper proposes a fractional-order (FO) control design with adaptive laws for dealing with such processes, and a comparison is analysed against other controllers established in the literature for delayed dynamics. Two examples are presented to illustrate the advantages of the proposed approach. A real time-embedded control setup and interface to industrial standard devices is tested to illustrate the implementation aspects of the proposed fractional-order control. Comparison with other established controllers is given.
Keywords
fractional-order control, industrial devices, process industry, real-time systems, variable time-delay
Suggested Citation
Copot D, Ghita M, Ionescu CM. Simple Alternatives to PID-Type Control for Processes with Variable Time-Delay. (2019). LAPSE:2019.0645
Author Affiliations
Copot D: DySC Research Group on Dynamical Systems and Control, Department of Electrical Energy, Metals, Mechanical Constructions and Systems, Ghent University, Technologiepark 914, B9052 Ghent, Belgium; Core Lab EEDT, Flanders Make, 9000 Ghent, Belgium [ORCID]
Ghita M: DySC Research Group on Dynamical Systems and Control, Department of Electrical Energy, Metals, Mechanical Constructions and Systems, Ghent University, Technologiepark 914, B9052 Ghent, Belgium; Core Lab EEDT, Flanders Make, 9000 Ghent, Belgium [ORCID]
Ionescu CM: DySC Research Group on Dynamical Systems and Control, Department of Electrical Energy, Metals, Mechanical Constructions and Systems, Ghent University, Technologiepark 914, B9052 Ghent, Belgium; Core Lab EEDT, Flanders Make, 9000 Ghent, Belgium; Department [ORCID]
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Journal Name
Processes
Volume
7
Issue
3
Article Number
E146
Year
2019
Publication Date
2019-03-08
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr7030146, Publication Type: Journal Article
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LAPSE:2019.0645
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doi:10.3390/pr7030146
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Jul 25, 2019
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CC BY 4.0
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[v1] (Original Submission)
Jul 25, 2019
 
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Jul 25, 2019
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v1
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https://psecommunity.org/LAPSE:2019.0645
 
Original Submitter
Calvin Tsay
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