Fractional-Order Control of Fluid Composition Conductivity

Dialysis refers to the procedure of removing waste products and excess fluids from the blood stream. This is the main form of treatment for both acute and chronic renal failure. The need for hemodialysis process optimization is increasing. More than 10% of adults are affected by chronic kidney disea...

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Main Authors: Raluca Giurgiu, Eva-H. Dulf, Levente Kovács
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Fractal and Fractional
Subjects:
Online Access:https://www.mdpi.com/2504-3110/7/4/305
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author Raluca Giurgiu
Eva-H. Dulf
Levente Kovács
author_facet Raluca Giurgiu
Eva-H. Dulf
Levente Kovács
author_sort Raluca Giurgiu
collection DOAJ
description Dialysis refers to the procedure of removing waste products and excess fluids from the blood stream. This is the main form of treatment for both acute and chronic renal failure. The need for hemodialysis process optimization is increasing. More than 10% of adults are affected by chronic kidney disease, and it is the nineth leading cause of deaths worldwide. Critically ill patients are particularly at risk, and their mortality is significantly affected by the hemodialysis procedures. This is the reason why the design and control of the hemodialysis process is studied by many researchers. The present paper proposes a fractional-order control of the fluid composition conductivity in this process. Fractional-order PI and PID controllers are designed with different imposed performances in order to establish the best performing controller for this medical process. The proposed fractional-order controllers are compared to the classical controller’s results in different real-world scenarios, including process parameter changes, flow changes, and priming sequences. The results are compared with a classical PID controller used in current clinical practice. The simulation results show the robustness and advantages of the proposed fractional-order PID controller over other controllers. These results could improve the clinical use of the hemodialysis process.
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spelling doaj.art-4f1cb9f3c7234de49b5a0ea1c8ef43322023-11-17T19:19:19ZengMDPI AGFractal and Fractional2504-31102023-03-017430510.3390/fractalfract7040305Fractional-Order Control of Fluid Composition ConductivityRaluca Giurgiu0Eva-H. Dulf1Levente Kovács2Department of Automation, Faculty of Automation and Computer Science, Technical University of Cluj-Napoca, Memorandumului Str. 28, 400014 Cluj-Napoca, RomaniaDepartment of Automation, Faculty of Automation and Computer Science, Technical University of Cluj-Napoca, Memorandumului Str. 28, 400014 Cluj-Napoca, RomaniaPhysiological Controls Research Center, Óbuda University, H-1034 Budapest, HungaryDialysis refers to the procedure of removing waste products and excess fluids from the blood stream. This is the main form of treatment for both acute and chronic renal failure. The need for hemodialysis process optimization is increasing. More than 10% of adults are affected by chronic kidney disease, and it is the nineth leading cause of deaths worldwide. Critically ill patients are particularly at risk, and their mortality is significantly affected by the hemodialysis procedures. This is the reason why the design and control of the hemodialysis process is studied by many researchers. The present paper proposes a fractional-order control of the fluid composition conductivity in this process. Fractional-order PI and PID controllers are designed with different imposed performances in order to establish the best performing controller for this medical process. The proposed fractional-order controllers are compared to the classical controller’s results in different real-world scenarios, including process parameter changes, flow changes, and priming sequences. The results are compared with a classical PID controller used in current clinical practice. The simulation results show the robustness and advantages of the proposed fractional-order PID controller over other controllers. These results could improve the clinical use of the hemodialysis process.https://www.mdpi.com/2504-3110/7/4/305fractional-order controllerdialysiskidney diseasefluid composition conductivity
spellingShingle Raluca Giurgiu
Eva-H. Dulf
Levente Kovács
Fractional-Order Control of Fluid Composition Conductivity
Fractal and Fractional
fractional-order controller
dialysis
kidney disease
fluid composition conductivity
title Fractional-Order Control of Fluid Composition Conductivity
title_full Fractional-Order Control of Fluid Composition Conductivity
title_fullStr Fractional-Order Control of Fluid Composition Conductivity
title_full_unstemmed Fractional-Order Control of Fluid Composition Conductivity
title_short Fractional-Order Control of Fluid Composition Conductivity
title_sort fractional order control of fluid composition conductivity
topic fractional-order controller
dialysis
kidney disease
fluid composition conductivity
url https://www.mdpi.com/2504-3110/7/4/305
work_keys_str_mv AT ralucagiurgiu fractionalordercontroloffluidcompositionconductivity
AT evahdulf fractionalordercontroloffluidcompositionconductivity
AT leventekovacs fractionalordercontroloffluidcompositionconductivity