Abstract
This paper presents a design method of model reference adaptive control system (MRACS) for single-input single-output linear continuous-time plants with inaccessible disturbance input.
A disturbance model, which is defined by a polynomial with respect to time multiplied by an exponential term, is introduced as an approximation of actual disturbance and a composite system is given by accommodating the disturbance model to the plant. Then the composite system parameters are represented by the linear conbination of the unknown plan parameters. In the proposed scheme, the indirect MRACS is design for the composite system. The global stability of the overall adaptive system is proved in the same way as the method shown by Goodwin et al..
A numerical example is given to illustrated the effectiveness of the proposed method.
