Abstract
The paper is dedicated to a problem of finding an area of values in a space of uncertain parameters of a control system, which provides acceptable oscillability degree for the system. Uncertain parameters may be included in each coefficient of system’s characteristic polynomial except two lower ones. The problem is proposed to be solved by a method based on estimating intervals of characteristic polynomial coefficients, which provide acceptable oscillability degree. On a base of interval values of characteristic polynomial coefficients and their dependencies on uncertain parameters of a system, a system of double inequalities can be derived. Solution of the system is the area of values of uncertain parameters allowing to keep acceptable control quality, particularly– acceptable oscillability degree, despite interval parametric uncertainty.
Published Version
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