Development of multi-mode step down DC/DC converters with fault-tolerant capability

Soon, JL; Lu, DDC; Qin, L; Sathiakumar, S

Development of multi-mode step down DC/DC converters with fault-tolerant capability

Soon, JL Lu, DDC

Qin, L Sathiakumar, S

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Publication Type:: Conference Proceeding
Citation:: 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017, 2017, pp. 127 - 133
Issue Date:: 2017-07-25

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Field	Value	Language
dc.contributor.author	Soon, JL	en_US
dc.contributor.author	Lu, DDC https://orcid.org/0000-0003-2145-0580	en_US
dc.contributor.author	Qin, L	en_US
dc.contributor.author	Sathiakumar, S	en_US
dc.date.issued	2017-07-25	en_US
dc.identifier.citation	2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017, 2017, pp. 127 - 133	en_US
dc.identifier.isbn	9781509051571	en_US
dc.identifier.uri	http://hdl.handle.net/10453/126791
dc.description.abstract	© 2017 IEEE. This paper proposes a three-switch step-down DC/DC converter with fault-tolerant capabilities. Detection of faults during power converter switching operations is important to avoid failures. In this paper, fault analysis is based on open circuit fault detection (OCFD) techniques. A numerical solution is developed based on the joule-integral principle to design OCFD hardware protection. Under normal operating conditions, either one of the three switching modes, namely, buck, buck-boost, or flyback, is allowed. The two other switches remain in standby mode. All switches share the same output filter component to achieve a single-switch converter operation in any mode. A microcontroller is used to monitor open circuit faults, and identify MOSFET failure and normal operating conditions. If an open circuit fault occurs on the main switch, the other switch will be activated to provide an alternate current path to maintain output regulation. Simulated and experimental results are demonstrated to verify the design and its fault-tolerant operations.	en_US
dc.relation.ispartof	2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017	en_US
dc.relation.isbasedon	10.1109/IFEEC.2017.7992430	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Development of multi-mode step down DC/DC converters with fault-tolerant capability	en_US
dc.type	Conference Proceeding
utslib.for	0906 Electrical and Electronic Engineering	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 Electrical and Data Engineering
utslib.copyright.status	closed_access	*
pubs.publication-status	Published	en_US

Abstract:

© 2017 IEEE. This paper proposes a three-switch step-down DC/DC converter with fault-tolerant capabilities. Detection of faults during power converter switching operations is important to avoid failures. In this paper, fault analysis is based on open circuit fault detection (OCFD) techniques. A numerical solution is developed based on the joule-integral principle to design OCFD hardware protection. Under normal operating conditions, either one of the three switching modes, namely, buck, buck-boost, or flyback, is allowed. The two other switches remain in standby mode. All switches share the same output filter component to achieve a single-switch converter operation in any mode. A microcontroller is used to monitor open circuit faults, and identify MOSFET failure and normal operating conditions. If an open circuit fault occurs on the main switch, the other switch will be activated to provide an alternate current path to maintain output regulation. Simulated and experimental results are demonstrated to verify the design and its fault-tolerant operations.

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http://hdl.handle.net/10453/126791