A strategy of continuous sliding mode control for laser beam focus positioning

Author

Sheng, Bing ; Duan, Zhengcheng ; Zhou, Zude

Author_Institution

Sch. of Mech. Sci. & Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China

Volume

1

fYear

1996

fDate

14-17 Oct 1996

Firstpage

123

Abstract

A high order sliding mode is introduced on the basis of a reaching law method, and a continuous strategy of sliding mode control (SMC) is proposed. Modeling-deviation and unmeasurable external disturbance are compensated by an integral action term. This scheme offers the robust property of conventional variable structure control (VSC) with a continuous control action, so chattering phenomena can be eliminated. Precise and rapid trajectory tracking can be performed by the proposed scheme. Simulation result for a laser beam focus positioning control system is presented

Keywords

continuous time systems; physical instrumentation control; position control; robust control; variable structure systems; chattering phenomena; continuous sliding mode control; high order sliding mode; integral action; laser beam focus positioning; modeling-deviation; reaching law method; trajectory tracking; unmeasurable external disturbance; Control system synthesis; Control systems; Frequency; Laser beams; Laser modes; Laser theory; Robust control; Robustness; Sliding mode control; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Systems, Man, and Cybernetics, 1996., IEEE International Conference on

Conference_Location

Beijing

ISSN

1062-922X

Print_ISBN

0-7803-3280-6

Type

conf

DOI

10.1109/ICSMC.1996.569752

Filename

569752