Robust adaptive backstepping controller design for DC-DC buck converters with external disturbances

Roy, T. K., Mahmud, M. A., Shen, Weixiang, Haque, M. E. and Oo, A. M. T. 2016, Robust adaptive backstepping controller design for DC-DC buck converters with external disturbances, in ICIEA 2016 : Proceedings of the 11th IEEE Industrial Electronics and Applications Conference, IEEE, Piscataway, N. J., pp. 1218-1223, doi: 10.1109/ICIEA.2016.7603770.

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Title Robust adaptive backstepping controller design for DC-DC buck converters with external disturbances
Author(s) Roy, T. K.
Mahmud, M. A.ORCID iD for Mahmud, M. A. orcid.org/0000-0002-5302-5338
Shen, Weixiang
Haque, M. E.ORCID iD for Haque, M. E. orcid.org/0000-0002-8893-2181
Oo, A. M. T.ORCID iD for Oo, A. M. T. orcid.org/0000-0002-6914-2272
Conference name IEEE Industrial Electronics and Applications. Conference (11th : 2016 : Hefei, China)
Conference location Hefei, China
Conference dates 5-7 Jun. 2016
Title of proceedings ICIEA 2016 : Proceedings of the 11th IEEE Industrial Electronics and Applications Conference
Editor(s) [Unknown]
Publication date 2016
Conference series IEEE Industrial Electronics and Applications Conference
Start page 1218
End page 1223
Total pages 6
Publisher IEEE
Place of publication Piscataway, N. J.
Summary In modern power electronic systems, DC-DC converter is one of the main controlled power sources for driving DC systems. But the inherent nonlinear and time-varying characteristics often result in some difficulties mostly related to the control issue. This paper presents a robust nonlinear adaptive controller design with a recursive methodology based on the pulse width modulation (PWM) to drive a DC-DC buck converter. The proposed controller is designed based on the dynamical model of the buck converter where all parameters within the model are assumed as unknown. These unknown parameters are estimated through the adaptation laws and the stability of these laws are ensured by formulating suitable control Lyapunov functions (CLFs) at different stages. The proposed control scheme also provides robustness against external disturbances as these disturbances are considered within the model. One of the main features of the proposed scheme is that it overcomes the over-parameterization problems of unknown parameters which usually appear in some conventional adaptive methods. Finally, the effectiveness of the proposed control scheme is verified through the simulation results and compared to that of an existing adaptive backstepping controller. Simulation results clearly indicate the performance improvement in terms of a faster output voltage tracking response.
ISBN 9781467386449
ISSN 2158-2297
Language eng
DOI 10.1109/ICIEA.2016.7603770
Field of Research 091006 Manufacturing Processes and Technologies (excl Textiles)
091302 Automation and Control Engineering
090602 Control Systems, Robotics and Automation
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category E1 Full written paper - refereed
ERA Research output type E Conference publication
Copyright notice ©2016, IEEE
Persistent URL http://hdl.handle.net/10536/DRO/DU:30084034

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