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Inverted decoupling internal model control for square stable multivariable time delay systems |
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| Affiliation: | 1. Department of Computer Science and Numerical Analysis, University of Cordoba, Campus de Rabanales, 14071 Cordoba, Spain;2. Department of Computer Science and Automatic Control, UNED, Juan del Rosal 16, 28040 Madrid, Spain;1. Department of Chemical Engineering, IIT Madras, Chennai 600036, India;2. Laboratoire d’Automatique, École Polytechnique Fédérale de Lausanne, 1015, Switzerland;1. Department of Electrical Engineering, University of Malaya, Faculty of Engineering, 50603 Kuala Lumpur, Malaysia;2. School of Microelectric Engineering, University Malaysia Perlis, Malaysia;3. Department of Petroleum and Chemical Engineering, Faculty of Engineering, Institut Teknologi Brunei, Brunei Darussalam |
| Abstract: | This paper presents a new tuning methodology of the main controller of an internal model control structure for n × n stable multivariable processes with multiple time delays based on the centralized inverted decoupling structure. Independently of the system size, very simple general expressions for the controller elements are obtained. The realizability conditions are provided and the specification of the closed-loop requirements is explained. A diagonal filter is added to the proposed control structure in order to improve the disturbance rejection without modifying the nominal set-point response. The effectiveness of the method is illustrated through different simulation examples in comparison with other works. |
| Keywords: | Internal model control Multivariable time delay systems Decoupling control |
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