제어로봇시스템학회:학술대회논문집
- 2000.10a
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- Pages.488-488
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- 2000
Stabilization for Multirate Sampled-data Control Systems in case of Open-loop Unstable Plant
- Son, Seok-Bo (Department of Electronics Engineering, Chungnam National University) ;
- Kim, Young-Baek (Navicom Co., Ltd.) ;
- Park, Chansik (School of Electronics and Electrical Engineering, Chungbuk National University) ;
- Lee, Sang-Jeong (Department of Electronics Engineering, Chungnam National University)
- Published : 2000.10.01
Abstract
This paper proposes a stabilizing controller for multirate sampled-data systems which have a periodic output The proposed controller has IMC structure, and can be decomposed into a ye-stabilizing controller, an output estimator, a filtered disturbance estimator and the inverse of the fast ye-stabilized plant model. We assume that the plant is open-loop unstable and the disturbance consists of a sum of finite number of sinusoids with different frequencies. A sufficient condition for maintaining observability in the multirate sampled-data system is derived and a design strategy for filtered disturbance rejection is proposed. In addition, we propose a design method (or the plant output estimator. The simulation results show that the proposed stabilizing controllers can stabilize the plant
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