スクリューコンベアの最適運転

概要

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Optimal control of a screw conveyer is discussed in this paper. It is known that there is the optimal transport conditions exist from the viewpoint of transport efficiency when granular materials are transported by a screw conveyer. This is defined by the filling ratio of granules inside the trough. The filling ratio can be identified by detecting the torque of the screw conveyer shaft. Therefore, the optimal transport conditions can be realized by controlling both the transport quantity and the torque of the screw shaft at the same time. As a control algorithm, a generalized predictive control (GPC) method extended to a multi-input multi-output linear system is applied to the screw conveyer process. Good response waves for a set-point change and a disturbance input are obtained by introducing a design polynomial into the GPC algorithm. Moreover, the effects of the control are examined by FFT analysis of the response waves.
一般社団法人日本機械学会の論文
1993-02-25