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vol 63 / July, 2020
Article

DOI 10.17586/0021-3454-2016-59-12-1010-1017

UDC 62-506

ROBUST CONTROL OVER SUSTAINABLE TECHNICAL OBJECT WITH TIME DELAY IN CONTROL WITH DISTURBANCE COMPENSATION

O. A. Remizova
St. Petersburg State Institute of Technology (Technical University), Department of Automation of Processes in Chemical Industry;


A. L. Fokin
St. Petersburg State Institute of Technology (Technical University), Department of Automation of Processes in Chemical Industry; Professor


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Abstract. A new structural scheme is proposed for the system, providing robust control for object with delay in control with compensation of slowly varying disturbances. Based on an internal model of the object at each moment the system output response to a disturbance is estimated. Instead of a predictor, in the control loop a special tracking is implemented; the signal comes to the nominal system input, and the disturbance compensation is provided by control response generated by the tracking system. The proposed scheme allows to reduce the system sensitivity to parametric uncertainty of the object model and the delay magnitude.
Keywords: uncertainty, delay, compensation, predictor, nominal system

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