Control processes

The method of accounting of bounded external disturbances for the synthesis of feedbacks with multi-purpose structure

M. N. Smirnov

St. Petersburg State University, 199034, St. Petersburg, Russia Federation

Abstract: The problem of suppression of external disturbances is one of the main problems in control theory. In many practical cases external impacts are just bounded and any other information is absent. In such situations it’s need to choose the control law, that will give the best possible result on the quality of the dynamics under the worst bounded disturbances. At the same time it’s important to provide the required degree of stability of the closed-loop system and property of astaticism. The paper proposes a method to construct an automatic control law that provides for three properties of a closed system stated above: the best compensation of bounded external disturbances, the desired degree of stability of the closed-loop system and astaticism. Bibliogr. 7. Il. 6.

Keywords: bounded external disturbances, control, stabilization, the degree of stability, astaticism.

UDC: 681.5.013

Received: December 19, 2013