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Smith Predictor Based Fractional‐Order‐Filter PID Controllers Design for Long Time Delay Systems |
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| Authors: | Maamar Bettayeb Rachid Mansouri Ubaid Al‐Saggaf Ibrahim Mustafa Mehedi |
| Affiliation: | 1. Electrical & Computer Engineering Department, University of Sharjah, United Arab Emirates;2. Distiguished Adjunct Professor, Center of Excellence in Intelligent Engineering Systems (CEIES) King Abdulaziz University, Jeddah, Saudi Arabia;3. Laboratoire de Commande et Conception des Systèmes de Production, Mouloud Mammeri University, Tizi Ouzou, Algeria;4. Center of Excellence in Intelligent Engineering Systems, Electrical and Computer Engineering Department, King Abdulaziz University, Jeddah, Saudi Arabia |
| Abstract: | In this paper, an original model‐based analytical method is developed to design a fractional order controller combined with a Smith predictor and a modified Smith predictor that yield control systems which are robust to changes in the process parameters. This method can be applied for integer order systems and for fractional order ones. Based on the Bode's ideal transfer function, the fractional order controllers are designed via the internal model control principle. The simulation results demonstrate the successful performance of the proposed method for controlling integer as well as fractional order linear stable systems with long time delay. |
| Keywords: | Fractional order controller PID controllers FO‐PID controllers Smith predictor long time delay fractional order system internal model control Bode's ideal transfer function |