Accelerated adaptive second order super-twisting sliding mode observer

Lin, C; Sun, S; Walker, P; Zhang, N

Accelerated adaptive second order super-twisting sliding mode observer

Lin, C Sun, S

Walker, P

Zhang, N

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Publication Type:: Journal Article
Citation:: IEEE Access, 2019, 7 pp. 25232 - 25238
Issue Date:: 2019-01-01

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Field	Value	Language
dc.contributor.author	Lin, C	en_US
dc.contributor.author	Sun, S https://orcid.org/0000-0002-8079-8934	en_US
dc.contributor.author	Walker, P https://orcid.org/0000-0003-3988-3966	en_US
dc.contributor.author	Zhang, N https://orcid.org/0000-0001-6408-0044	en_US
dc.date.issued	2019-01-01	en_US
dc.identifier.citation	IEEE Access, 2019, 7 pp. 25232 - 25238	en_US
dc.identifier.uri	http://hdl.handle.net/10453/134830
dc.description.abstract	© 2013 IEEE. An accelerated second-order super-twisting sliding mode observer with an adaptive gain is proposed for a typical nonlinear system. The key contribution of this algorithm is that the rate of convergence of observation error is accelerated remarkably by introducing 'system damping.' Chattering issue is attenuated with a satisfactory performance compared with conventional sliding mode observer. Furthermore, adaptive gain can vary with deviation between the trajectory and the sliding mode switching manifold dynamically so that overshoot can be reduced. The novel observer is proven mathematically to be convergent in a finite time. Finally, an example of nonlinear system is given to verify the performance.	en_US
dc.relation	http://purl.org/au-research/grants/arc/DP150102751
dc.relation.ispartof	IEEE Access	en_US
dc.relation.isbasedon	10.1109/ACCESS.2018.2872792	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Accelerated adaptive second order super-twisting sliding mode observer	en_US
dc.type	Journal Article
utslib.citation.volume	7	en_US
utslib.for	0913 Mechanical Engineering	en_US
utslib.for	08 Information and Computing Sciences	en_US
utslib.for	09 Engineering	en_US
utslib.for	10 Technology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
pubs.organisational-group	/University of Technology Sydney/Students
utslib.copyright.status	closed_access	*
pubs.publication-status	Published	en_US
pubs.volume	7	en_US

Abstract:

© 2013 IEEE. An accelerated second-order super-twisting sliding mode observer with an adaptive gain is proposed for a typical nonlinear system. The key contribution of this algorithm is that the rate of convergence of observation error is accelerated remarkably by introducing 'system damping.' Chattering issue is attenuated with a satisfactory performance compared with conventional sliding mode observer. Furthermore, adaptive gain can vary with deviation between the trajectory and the sliding mode switching manifold dynamically so that overshoot can be reduced. The novel observer is proven mathematically to be convergent in a finite time. Finally, an example of nonlinear system is given to verify the performance.

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http://hdl.handle.net/10453/134830