| Title |
A Study on the Design of an Adaptive pole Placement Controller with Improved Convergence Properties |
| Keywords |
적응제어 ; 극배치제어 ; 최소 자승 알고리즘 ; 지수 함수적 가중 ; Bezout 항등식 Adaptive Control ; Pole Placement Control ; Least Squares Algorithm ; Exponetial Weighting ; Bezout Identity |
| Abstract |
In this paper, a direct adaptive pole placement controller for an unknown linear time-invariant single-input single-output nonminimum phase plant is proposed. To design this direct adaptive pole placement controller, the auxiliary signals are introduced. Consequently, a linear equation error model is formulated for estimating both the controller parameters and the additional auxiliary parameters. To estimate the controller parameters and the additional auxiliary parameters, the exponentially weighted least-squares algorithm is implemented, and a method of selecting the characteristic polynomials of the sensitivity function filters is proposed. In this method, all the past measurement data are weighted exponentially. A series of simulations for a nonminimum phase plant is presented to illustrate some features of both the parameter estimation and the output response of this adaptive pole placement controller. |