Article 2022 · 3 citations

Enhanced fractional-order PIλDμ control for a forced circulation evaporator system via advanced disturbance observer

Abstract

Strong disturbances, time delays, and coupling effects complicate the control of evaporator systems. In this paper, to overcome these difficulties a three-stage controller design is given and as a first step a disturbance observer (DOB) is designed. Then, fractional order PI lambda D mu controllers (PI lambda D mu FOC) with inverted decoupling structure are realized. Finally, PI lambda D mu FOC is enhanced via DOB and applied to control of a considered forced circulation evaporator system. Controlling the evaporator system with the DOB-enhanced PI lambda D mu FOC is showed more accurate and precise control results when compared with the optimally tuned PID and fuzzy logic controller (FLC). The DOB-enhanced PI lambda D mu FOC method has remarkable superiority in disturbance rejection and the proposed control method is improved the tracking ability of the system for reference changes.(c) 2022 ISA. Published by Elsevier Ltd. All rights reserved.

Keywords

Disturbance observer Fractional order control PI?D? controllers Inverted decoupling structure Forced circulation evaporator PREDICTIVE CONTROL NEURAL-NETWORKS DESIGN IDENTIFICATION

WoS Categories

Automation & Control Systems Engineering, Multidisciplinary Instruments & Instrumentation

Sustainable Development Goals

Responsible Consumption and Production

Citation

Journal: ISA TRANSACTIONS
Year: 2022
Volume: 131
Pages: 167-177
ISSN: 0019-0578
eISSN: 1879-2022
DOI: 10.1016/j.isatra.2022.05.022
WoS UID: WOS:000905395700001

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