Discrete, Fractional Order, Cancellation Controller. Part II: PLC Implementation

Oprzędkiewicz, Krzysztof; Więckowski, Ł.; Podsiadło, Maciej

doi:10.1007/978-3-030-13273-6_4

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2020

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“…Many solutions presented in the literature on the effective PLC FOPID implementation, are tested in the Hardware-in-the-Loop setup [36,[42][43][44][45]. Only few describe the laboratory experiments with real processes [25,36,51].…”

Section: Introductionmentioning

confidence: 99%

PLC based fractional-order PID temperature control in pipeline: design procedure and experimental evaluation

2020

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Fractional-order control system design can be used for systems with non-local dynamics involving long-term memory effects. However, implementation of a fractional-order controller in industrial systems is complicated, because of the excessive demand for computational power. The following paper presents the step-by-step design procedure, parameter tuning, and experimental evaluation of the fractional order proportional-integral-derivative (FOPID) controller. The control algorithm is based on the Continued Fraction Expansion approximation of the fractional-order operators. It is implemented on a standard industrial Programmable Logic Controller. The FOPID control system is verified and evaluated in terms of efficiency and robustness using a new laboratory benchmark of a temperature control in the pipeline. The proposed solution shows increased efficiency in terms of robustness compared to the standard PID closed-loop control.

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