SYNTHESIS OF ASYMPTOTIC OBSERVER FOR MAGNETIC SEPARATOR CONTROL IN IRON ORE PROCESSING

The theory of asymptotic observers of coordinates is described in brief. An observer and a similar Kalman filter are compared. The structure of the automated control system for a magnetic separator with an observer of iron mass fraction in magnetite concentrate and tailings is described. Based on the reference information on normal operation modes of the equipment, the static and dynamic characteristics of interaction between the control and processing performance are obtained. The closed magnetic separator control system with the observer and proportional regulator is synthesized. The system is modeled with MATLAB. The conversion processes of iron mass fraction in magnetite concentrate and tailings are obtained from the observer and measuring transducers. The modeling shows that application of the observer reduces the mean square error and enhances the accuracy and quality of control.

Keywords

Observer, Kalman filter, control, three-sigma rule, characteristic polynomial, system poles, asynchronous motor, magnetic separation, concentrate, tailings.

Issue number: 6
Year: 2018
ISBN:
UDK: 622.7.092
DOI: 10.25018/0236-1493-2018-6-0-153-160
Authors: Osipova N. V.

About authors: Osipova N.V., Candidate of Technical Sciences, Assistant Professor, e-mail: nvo86@mail.ru, Institute of Information Technologies and Automated Control Systems, National University of Science and Technology «MISiS», 119049, Moscow, Russia.

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