Nguyen, T. Sang and Hoang, Ngoc Ha and Hussain, Mohd Azlan and Tan, Chee Keong (2019) Tracking-error control via the relaxing port-Hamiltonian formulation: Application to level control and batch polymerization reactor. Journal of Process Control, 80. pp. 152-166. ISSN 0959-1524, DOI https://doi.org/10.1016/j.jprocont.2019.05.014.
Full text not available from this repository.Abstract
In this paper, a tracking-error-based control design without feedback passivation stage is developed for the stabilization of physical and chemical nonlinear processes. To achieve control objectives, the system dynamics is first formulated under appropriate conditions as a relaxing (pseudo) port-Hamiltonian (PH) representation with some quadratic storage function, in which the positive semi-definite property of damping matrix may not be taken necessarily into account. Then, a reference trajectory expressed by a certain structure passing through a desired set-point (or containing an optimal profile) is suitably chosen. By adding a relevant damping injection, asymptotic and global convergence of error dynamics is guaranteed. Two case studies including the level control of a four-tank process of continuous time type and the optimal tracking of a batch polymerization reactor of discontinuous time type due to the nature of the process operation are used to illustrate the application and the effectiveness of the approach. Besides the control performance comparison with the conventional passivity-based control method and the robustness evaluation against disturbance and/or noise are included. © 2019 Elsevier Ltd
| Item Type: | Article |
|---|---|
| Funders: | Japan International Cooperation Agency (JICA) and University of Malaya through the AUN/Seed-Net scholarship |
| Uncontrolled Keywords: | Port-Hamiltonian formulation; Tracking-error method; Passivity-based control; Nonlinear system |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Faculty of Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 19 Feb 2020 01:49 |
| Last Modified: | 19 Feb 2020 01:49 |
| URI: | http://eprints.um.edu.my/id/eprint/23837 |
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