Abstract
In this paper, we propose a new multirate digital control system where the contrinuous plant with long dead time is stabilized by the layered digital controller which has different sampling periods, respectively. The sampling period of the controller is determined by the dead-time of the output.
In the actual plant, since the identification is not exact, the learning control method is used to improve the performance.
Also, to improve the efficiency of the learning control, the digital controller in the lower layer is tuned by the feed-forward of the control input of the upper layer.
The proposed control method is applied to the Organic Rankin Cycle System in the iron manufacturing process.
