Extended Perfect Model Following

Abstract

The perfect model following (PMF) is an established technique in control system synthesis which has such a characteristic that the state variables of plant perfectly follow those of model. However, the condition for PMF to be able to synthesize is rather severe. In order to relax this condition and enable easy synthesis of PMF system, extended PMF (EPMF) is proposed. EPMF is a PMF where the output (not state variables) of plant perfectly follows that of model. A condition of EPMF and design procedure of EPMF are derived. Sensitivity reduction in EPMF is analyzed. Design examples for some systems and an aircraft control system are performed and simulated. Possibility of wide application and desirable characteristics of EPMF are shown.