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|Title:||Relay-tuned FSA control for unstable processes with deadtime|
|Authors:||Wang, Q.G. |
|Citation:||Wang, Q.G.,Lee, T.H.,Tan, K.K. (1995). Relay-tuned FSA control for unstable processes with deadtime. Proceedings of the American Control Conference 1 : 311-315. ScholarBank@NUS Repository.|
|Abstract:||In this paper, the control of open-loop unstable processes with deadtime is considered. Astrom's relay auto-tuning for PID regulators is extended to such processes. Some conditions for limit cycles under relay feedback are given. A first-order unstable rational function plus deadtime is employed to model a class of the processes with a single employed to model a class of the processes with a single unstable pole and deadtime. Its parameters are extracted from a relay feedback experiment. The modified finite spectrum assignment is used to control such a process and a simple method is then developed to obtain the closed-form control law for ease of real-time implementation. It is also shown that so auto-tuned MFSA system is practically stable in the face of perturbations in process dynamics. Simulation examples are included for illustration.|
|Source Title:||Proceedings of the American Control Conference|
|Appears in Collections:||Staff Publications|
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