MODEL-FOLLOWING CONTROL OF LINEAR PROPER NONMINIMUM-PHASE SYSTEMS

The design of model-following control (MFC) for (A, B, C, D) quadruple systems is considered. The main result is that a non-minimum-phase (NMP) plant can be controlled so that it will follow a prespecified model in the sense of optima. The characteristics of the proposed control mechanism are: (1) the control design problem appears to be a two-point boundary-value problem (TPBVP); (2) this TPBVP can be easily solved by a modified Runge-Kutta method; (3) the existence of the control for a typical NMP plant is proved; (4) some poor properties of a NMP plant are also improved. Two examples are used to verify the control mechanism presented.