Rejection of Multiharmonic Disturbance Approach Based on Simple Adaptive Control Principle

This paper deals with control algorithms development for output stabilization of the parametrically uncertain linear plant of unknown relative degree. Simple adaptive control paradigm lies in the basis of proposed approach. Controller was supplemented with the switching-based scheme of substitution of multiharmonic external disturbance frequencies' estimations that improves controller performance without its significant complication. Stability analysis of the closed-loop hybrid system was conducted and corresponding conditions on switching parameters were stated.