Tracking error plus damping injection control of non-minimum phase processes

Nguyen, T. Sang and Hoang, Ngoc Ha and Hussain, Mohd Azlan (2018) Tracking error plus damping injection control of non-minimum phase processes. IFAC-PapersOnLine, 51 (18). pp. 643-648. ISSN 2405-8963, DOI

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This work proposes a passivity-based approach to deal with the output-tracking-error problem for a large class of nonlinear chemical processes including non-minimum phase systems. More precisely, in that framework, the system dynamics is firstly written into the relaxing (pseudo) port-Hamiltonian representation which does not necessarily require the positive semi-definite property of the damping matrix. Then, a reference trajectory associated with a certain structure passing through a desired equilibrium point (i.e., the set-point) is chosen so that the error dynamics can be globally asymptotically stabilized at the origin thanks to the assignment of an appropriate damping injection. This method is subsequently illustrated for a benchmark of multiple reactions systems, namely Van de Vusse reaction system. The numerical simulations show the applications of the proposed approach.

Item Type: Article
Uncontrolled Keywords: Port-Hamiltonian framework; chemical process systems; non-minimum phase system; passivity; tracking error
Subjects: Q Science > Q Science (General)
Q Science > QD Chemistry
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 07 May 2019 03:40
Last Modified: 07 May 2019 03:40

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