Robust state feedback control of electric heating furnace using a new disturbance observer

Rsetam, Kamal and AL-Rawi, Mohammad and Cao, Zhenwei (2021) Robust state feedback control of electric heating furnace using a new disturbance observer. Select One, Auckland, New Zealand, 7-10 December, 2021. (In Press)

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Abstract or Summary

As one type of heating furnaces, the electric heating furnace (EHF) typically suffers from time delay, non-linearity, time-varying parameters, system uncertainties, and harsh environment of the furnace, which significantly deteriorate the temperature control process of the EHF system. In order to achieve accurate and robust temperature tracking performance, integration of robust state feedback control (RSFC) and a novel sliding mode-based disturbance observer (SMDO) is proposed in this paper, where modelling errors and external disturbances are lumped as a lumped disturbance. To describe the characteristics of the EHF, by using convection laws, and the integrated dynamic model is established and identified as an uncertain nonlinear second-order system. The SMDO is newly designed to estimate the lumped disturbance, where the estimation error converges to zero asymptotically. The estimation of the disturbances is then used in the control law of the RSFC to reject the system’s lumped disturbance. The analytical results demonstrate that the proposed method is asymptotically stable with guaranteeing the tracking error convergence to zero even in the presence of external disturbances. Finally, the comparative simulation study shows the effectiveness of the proposed method for the temperature control tracking of the considered furnace application.

Item Type:Paper presented at a conference, workshop or other event, and published in the proceedings
Keywords that describe the item:Robust state feedback control (RSFC), sliding mode disturbance observer (SMDO), electric heating furnace (EHF), temperature control
Subjects:T Technology > T Technology (General)
T Technology > TJ Mechanical engineering and machinery
T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology > TS Manufactures
Divisions:Schools > Centre for Engineering and Industrial Design
ID Code:7861
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Deposited On:02 Dec 2021 19:57
Last Modified:02 Dec 2021 22:44

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