Abstract
A new method for designing a discrete time adaptive control system is presented for a single-input, single-output, time-varying plant with known dead time. It is assumed that the time-varying plant treated here has unknown time-varying parameters which are described by certain time function of the known form.
The proposed method is based on an indirect model reference adaptive control algorithm with predictor of the future value of the plant output.
In this paper, first, an adaptive controller is designed for the case where the plant has a stable inverse. Next, it is shown that the proposed adaptive control algorithm guarantees the convergence of the plant output to the reference sequence. Moreover, the structure of the control system is discussed and the modification of the control system is also mentioned.
Finally, the result of computer simulation of adaptive control applied to a plant with time-varying parameters is included to illustrate the effectiveness of the proposed method.
