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Lookup NU author(s): Rudy Agustriyanto, Dr Jie ZhangORCiD
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Exploring the disturbance rejection capability of possible multi-loop control structures for the ALSTOM gasifier benchmark process and selecting the appropriate control structure are presented in this paper. Generalized Relative Disturbance Gain (GRDG) analysis is used for control structure determination. In order to carry out GRDG analysis, process models in the form of transfer functions are obtained from the discrete time models identified using the Output-Error (OE) system identification method from the simulated process operation data. Models identified with the OE method can provide accurate long range prediction (or simulation) performance and, hence, lead to accurate transfer function models. The GRDG analysis of four control schemes proposed by Asmar et al. [1] clearly shows that the control structure employed by the baseline controller is the most favoured multi-loop control structure. This study provides explanations for the impressive performance of the ALSTOM baseline controller that are not available before.
Author(s): Agustriyanto R, Zhang J
Publication type: Article
Publication status: Published
Journal: International Journal of Modelling, Identification and Control
Year: 2009
Volume: 6
Issue: 2
Pages: 126-135
ISSN (print): 1746-6172
ISSN (electronic): 1746-6180
Publisher: Inderscience Publishers
URL: http://dx.doi.org/10.1504/IJMIC.2009.024329
DOI: 10.1504/IJMIC.2009.024329
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