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Digital redesign of analog smith predictor for systems with long input time delays |
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| Authors: | Linbo Xie Leang-San Shieh Jason Sheng-Hong Tsai Shu-Mei Guo Alex Christian Dunn |
| Institution: | 1. Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education) Jiangnan University, Wuxi 214122, Jiangsu, China;2. Department of Electrical and Computer Engineering, University of Houston, Houston, TX 77204-4005, USA;3. Department of Electrical Engineering, National Cheng-Kung University, Tainan 701, Taiwan, ROC;4. Department of Computer Science and Information Engineering, National Cheng-Kung University, Tainan 701, Taiwan, ROC;5. United States Patent and Trademark Office (USPTO), Alexandria, United States |
| Abstract: | The discretization of the analog Smith predictor by using the prediction-based state-matching digital redesign method for systems with various input time delays was recently investigated in the literature. This paper presents an alternative Chebyshev quadrature state-matching digital redesign method for discretization of the analog Smith predictor for systems with a long input time delay. In order to implement the digitally redesigned Smith predictor by utilizing the output-feedback of the plant, an ideal state reconstructor for the long input-delayed plant is established. The long dead time of interest is an integer plus a fractional input delay. An illustrative example is given to demonstrate the effective of the proposed approach. |
| Keywords: | Corresponding author |
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