Title :
H~~ Performance Comparison of Single-rate and Multirate Sampled-data Systems
Author :
Izadi, Iman ; Chen, Tongwen ; Zhao, Qing
Author_Institution :
Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta.
Abstract :
In many industrial applications outputs of plants and control signals are measured and generated at different rates, leading to multirate control systems. It is generally believed that the optimal multirate controller performs better than the optimal slow single-rate controller but worse than the optimal fast single-rate controller. This conjecture is theoretically proved in this paper for general multirate systems. As a measure of the quality of control, we use the Hinfin; norm of the closed-loop system
Keywords :
Hinfin control; closed loop systems; multivariable control systems; sampled data systems; Hinfin control; closed-loop system; multirate control systems; multirate sampled-data systems; optimal fast single-rate controller; optimal multirate controller; optimal slow single-rate controller; single-rate sampled-data system; Application software; Chemical elements; Chemical sensors; Control systems; Digital control; Electrical equipment industry; Industrial control; Optimal control; Sampling methods; Signal generators;
Conference_Titel :
American Control Conference, 2006
Conference_Location :
Minneapolis, MN
Print_ISBN :
1-4244-0209-3
Electronic_ISBN :
1-4244-0210-7
DOI :
10.1109/ACC.2006.1655351
