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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.
Title Design of the Controllers for the Improved Response of Time Delay Systems
Authors Seung-Hyun Yang ; Suk-Won Lee
Page pp.15-19
ISSN 1225-1135
Keywords Time-delay ; Smith Predictor ; 2nd-Order plus dead time
Abstract The practical control problems for the time-delay system is considered. The delay-free characteristics of the Smith Predictor is available only when both the process and it’s model are exactly matched. So it does not used widely in practical industrial processes. In this paper, using the 2nd-order plus dead time model in place of the plant model of the Smith Predictor, the proposed controller shows the improved performance in case of the very long time delay. And the range of integral constant of the PI controller is also proposed.