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

Volume

1

fYear

2001

fDate

2001

Firstpage

564

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;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2001. Proceedings of the 2001

Conference_Location

Arlington, VA

ISSN

0743-1619

Print_ISBN

0-7803-6495-3

Type

conf

DOI

10.1109/ACC.2001.945606

Filename

945606