Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/72892
Title: Relay-tuned FSA control for unstable processes with deadtime
Authors: Wang, Q.G. 
Lee, T.H. 
Tan, K.K. 
Issue Date: 1995
Source: 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
URI: http://scholarbank.nus.edu.sg/handle/10635/72892
ISSN: 07431619
Appears in Collections:Staff Publications

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