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New Smith Predictor Controller Design Using a Disturbance Observer  

Lee, Soon-Young (경상대학교 전기전자공학부)
Yang, Dae-Geun (여수화력발전처 계측제어부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.9, no.8, 2005 , pp. 1730-1734 More about this Journal
Abstract
In this paper, a new Smith predictor controller for a disturbance adding to input side of a time delay plant is proposed. A disturbance observer is obtained to estimate an input disturbance and the new Smith predictor controller to eliminate the effects of a disturbance is designed using the disturbance observer. As a result, the proposed Smith predictor controller can make a steady state error for step input disturbance zero quickly. The effectiveness and the improved performance of the proposed system are verified by computer simulation.
Keywords
Smith predictor controller; Time delay system; PID controller;
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