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Rate-dependent hysteresis modeling and control of a piezostage using online support vector machine and relevance vector machine
Wong P.-K.1; Xu Q.1; Vong C.-M.2; Wong H.-C.1
2012
Source PublicationIEEE Transactions on Industrial Electronics
ISSN2780046
Volume59Issue:4Pages:1988
Abstract

Hysteresis nonlinearity degrades the positioning accuracy of a piezostage and requires a suppression for precision micro-/nanopositioning applications. This paper proposes two new approaches to modeling and compensating the rate-dependent hysteresis of a piezostage driven by piezoelectric stack actuators. By formulating the hysteresis modeling as an online nonlinear regression problem, online least squares support vector machine (SVM) (LS-SVM) and online relevance vector machine (RVM) models are proposed to capture the hysteretic behavior. Both hysteresis models are capable of updating continually with subsequent samples. After a comparative study on modeling performances, an inverse model-based feedforward combined with proportional-integral-derivative feedback control is presented to alleviate the hysteresis effect. Experimental results show that the LS-SVM model-based control scheme is over 86% more accurate than the RVM model-based one in the motion tracking task, whereas the latter is 14 times faster than the former in terms of updating time. Moreover, both LS-SVM and RVM model-based control schemes can suppress the rate-dependent hysteresis to a negligible level, which validates the feasibility and effectiveness of the proposed approaches. © 2011 IEEE.

KeywordHysteresis Least Squares Support Vector Machines (Svms) (ls-Svms) Motion Control Piezoelectric Actuator Relevance Vector Machine (Rvm)
DOI10.1109/TIE.2011.2166235
URLView the original
Indexed BySCI
Language英语
WOS Research AreaAutomation & Control Systems ; Engineering ; Instruments & Instrumentation
WOS SubjectAutomation & Control Systems ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS IDWOS:000296480700032
The Source to ArticleScopus
Fulltext Access
Citation statistics
Cited Times [WOS]:100   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTROMECHANICAL ENGINEERING
DEPARTMENT OF COMPUTER AND INFORMATION SCIENCE
Corresponding AuthorWong P.-K.
Affiliation1.Univ Macau, Fac Sci & Technol, Dept Electromech Engn, Macao, Peoples R China
2.Univ Macau, Fac Sci & Technol, Dept Comp & Informat Sci, Macao, Peoples R China
First Author AffilicationUniversity of Macau
Corresponding Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Wong P.-K.,Xu Q.,Vong C.-M.,et al. Rate-dependent hysteresis modeling and control of a piezostage using online support vector machine and relevance vector machine[J]. IEEE Transactions on Industrial Electronics,2012,59(4):1988.
APA Wong P.-K.,Xu Q.,Vong C.-M.,&Wong H.-C..(2012).Rate-dependent hysteresis modeling and control of a piezostage using online support vector machine and relevance vector machine.IEEE Transactions on Industrial Electronics,59(4),1988.
MLA Wong P.-K.,et al."Rate-dependent hysteresis modeling and control of a piezostage using online support vector machine and relevance vector machine".IEEE Transactions on Industrial Electronics 59.4(2012):1988.
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