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Discrete-time second-order sliding mode control for a nanopositioning stage
Xu Q.
2014
Conference Name33rd Chinese Control Conference (CCC)
Source PublicationProceedings of the 33rd Chinese Control Conference, CCC 2014
Pages7976-7981
Conference DateJUL 28-30, 2014
Conference PlaceNanjing, PEOPLES R CHINA
Abstract

This paper presents a discrete-time second-order sliding mode control scheme dedicated to precision motion control of a nanopositioning stage driven by piezoelectric actuators. Unlike conventional discrete-time sliding mode control (DSMC), the second-order DSMC allows the elimination of chattering phenomenon. A stability analysis of the proposed second-order DSMC control strategy is carried out. Based on the plant model of the system, the controller parameters are assigned. Comparative studies are conducted using the reported scheme and conventional proportional-integral-derivative (PID) control. Results show that the second-order DSMC scheme is superior to PID control in terms of motion tracking accuracy. In addition, the control scheme is easy to realize, and it can be extended to other types of systems as well.

KeywordDiscrete Sliding Mode Control Precision Motion Control Variable Structure Control
DOI10.1109/ChiCC.2014.6896333
URLView the original
Indexed BySCI
WOS Research AreaAutomation & Control Systems
WOS SubjectAutomation & Control Systems
WOS IDWOS:000366482808019
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Citation statistics
Document TypeConference paper
CollectionDEPARTMENT OF ELECTROMECHANICAL ENGINEERING
AffiliationUniversidade de Macau
Recommended Citation
GB/T 7714
Xu Q.. Discrete-time second-order sliding mode control for a nanopositioning stage[C],2014:7976-7981.
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