A Design of Memory-Based PID Controllers

概要

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Since most processes have nonlinearities, controller design schemes to deal with such systems are required. On the other hand, PID controllers have been widely used for process systems. Therefore, in this paper, a new design scheme of PID controllers based on a memory based modeling (MB modeling) is proposed for nonlinear systems. According to the MB modeling method, some local models are automatically generated based on input/output data pairs of the controlled object stored in the data-base. The proposed scheme generates PID parameters using stored input/output data in the data-base. This scheme can adjust the PID parameters in an on-line manner even if reference signals are changed, and/or system parameters are changed. Finally, the effectiveness of the newly proposed control scheme is numerically evaluated on some simulation examples.
公益社団法人計測自動制御学会の論文