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UDC 681.515

SMITH PREDICTOR PROPERTIES ADJUSTMENT USING SIMULINK RESPONSE OPTIMIZATION SOFTWARE

A. I. Bobikov, PhD (technical sciences), RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.;
T. S. Bubnova, engineer-programmer, «IC «Single information standard».

In industrial control systems, there is often a delay, often associated with the transportation of materials or energy. The appearance of Smith predictor in 1957 provided the developers with the opportunity to reduce negative effect of delay on the response quality of the controlled system. In this paper we consider a modified Smith predictor with a filter, used to reduce the influence of disturbances and increase the robustness of control system. Using the Simulink response optimization package, it is proposed to optimize filter settings, as well as PI controller, since manual tuning is laborious enough and does not always allow finding optimal system parameters. In addition to optimizing the parameters, the package makes it possible to take into account the uncertainty of dynamic parameters of control object, in order to ensure the robustness of the system.

Key words: Object with delay, Smith's predictor, PI controller, Simulink response optimization, transfer function (TF).

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