Title :
Design of a multi-rate controller and its application to galvanometer servo systems
Author :
Hwang, Hee Choul ; Chung, Chung Choo ; Lee, Seung-Hi
Author_Institution :
Digital Media Res. Lab., LG Electron., South Korea
Abstract :
This paper presents a new multi-rate estimator design for multi-rate output feedback control (MROFC) using the current state estimator. It is shown that the principle of separation works in the design of MROFC. The MROFC system is shown to be less sensitive to noise disturbances than the single-rate control system. The proposed MROFC is applied to a galvanometer servo system. Simulation and experimental results show improved settling and tracking performance over the conventional single-rate control
Keywords :
control system synthesis; digital control; feedback; galvanometers; servomechanisms; state estimation; time-varying systems; MROFC; digital control; experimental results; galvanometer servo systems; multi-rate controller design; multi-rate output feedback control; multirate estimator design; noise disturbances; simulation; state estimation; time-varying controllers; tracking; Application software; Bandwidth; Control systems; Digital control; Filters; Noise measurement; Output feedback; Sampling methods; Servomechanisms; State estimation;
Conference_Titel :
American Control Conference, 2001. Proceedings of the 2001
Conference_Location :
Arlington, VA
Print_ISBN :
0-7803-6495-3
DOI :
10.1109/ACC.2001.945606
