A relative degree one modified active disturbance rejection control for four-tank level control system

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dc.contributor.authorHashim, Zahraa Sabah
dc.contributor.authorIbraheem, Ibraheem Kasim
dc.contributor.statusnemhu_HU
dc.date.accessioned2022-06-17T13:58:35Z
dc.date.available2022-06-17T13:58:35Z
dc.date.issued2022-06-16
dc.description.abstractThis paper deals with the disturbance rejection, parameter uncertainty cancelation, and the closed-loop stabilization of the water level of the four-tank nonlinear system. For the four-tank system with relative degree one, a new structure of the active disturbance rejection control (ADRC) has been presented by incorporating a tracking differentiator (TD) in the control unit to obtain the derivate of the tracking error. Thus, the nonlinear-PD control together with the TD serves as a new nonlinear state error feedback. Moreover, a sliding mode extended state observer is presented in the feedback loop to estimate the system's state and the total disturbance. The proposed scheme has been compared with several control schemes including linear and nonlinear versions of ADRC techniques. Finally, the simulation results show that the proposed scheme achieves excellent results in terms of disturbance elimination and output tracking as compared to other conventional schemes. It was able to control the water levels in the two lower tanks to their desired value and exhibits excellent performance in terms of Integral Time Absolute Error (ITAE) and Objective Performance Index (OPI).hu_HU
dc.identifier.doi10.1556/1848.2021.00352hu_HU
dc.identifier.issn2062-0810
dc.identifier.issue2hu_HU
dc.identifier.jtitleInternational Review of Applied Sciences and Engineering
dc.identifier.urihttp://hdl.handle.net/2437/335479
dc.identifier.urlhttps://akjournals.com/view/journals/1848/13/2/article-p216.xmlhu_HU
dc.identifier.volume13hu_HU
dc.language.isoenhu_HU
dc.publisherAkadémiai Kiadóhu_HU
dc.subjectfour-tank systemhu_HU
dc.subjectActive Disturbance Rejection Control (ADRC)hu_HU
dc.subjectIntegral Time Absolute Error (ITAE)hu_HU
dc.subjectObjective Performance Index (OPI)hu_HU
dc.subjectextended state observerhu_HU
dc.subjecttracking differentiatorhu_HU
dc.subjectnonlinear state error feedbackhu_HU
dc.titleA relative degree one modified active disturbance rejection control for four-tank level control systemhu_HU
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International Review of Applied Sciences and Engineering