Controller Reduction by Direct Feed-Through

Abstract

This paper deals with the reduction of the order of controllers. The approach suggested herein is to introduce a static feed-through between the measurement residual and the control signals, in order to render any preselected eigenvalues of the given controller unobservable. and/or uncontrollable. The resulting reduced controllers preserve the stability of the closed loop system. Such order-reducing feed-through loops are parametrized.