Coordinate-to-operator feedback: properties, features, outlooks

Consideration was given to the problem of control of the dynamic plants operating under uncertainty and, in particular, under unmeasurable external disturbances of the coordinate and operator types. Under the assumption of rapidly varying parametric disturbances, complexity of this problem grows appreciably. In this case, the question of constructing efficient control algorithms still falls far short of solution. A brief review of the existing methods of control of the dynamic plants subjected to various disturbances was given. For the case of control plants operating under rapidly changing parametric disturbances, attention was focused on an approach relying on the binarity principle and enabling introduction of new feedback types such as the coordinate-to-operator feedback which in turn enables one to design controllers ensuring low sensitivity of the closed-loop plants to the coordinate and parametric disturbances varying with an arbitrary rapid speed. The potentialities of this approach were illustrated by way of example of the problem of control of an uncertain second-order dynamic plant.