Abstract
This paper presents the design method of discrete time adaptive control system based on pole placement method for linear time invariant plant with unknown deterministic disturbances.
The disturbances which are treated here are described by the polynomial function of time and/or the output of the stable autonomous system with known order and unknown coefficients.
In this paper, first, the structures of the controller which decouples the disturbances from the plant output, in the cases where the parameters of the plant and characteristic polynomials of the disturbances are known, are discussed. Next, the procedure of constructing the adaptive control system, where the dynamics of the plant and disturbances are unknown, is described.
Finally, the result of computer simulation of the adaptive control applied to a second order non-minimum phase plant with sinusoidal disturbance is included to illustrate the effectiveness of the proposed method.
