Electro-Thermal Average Modeling of a Boost Converter Considering Device Self-heating

Cheng, T; Dah-ChuanLu, D; Siwakoti, YP

Electro-Thermal Average Modeling of a Boost Converter Considering Device Self-heating

Cheng, T Dah-ChuanLu, D Siwakoti, YP

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Publisher:: IEEE
Publication Type:: Conference Proceeding
Citation:: 2020 IEEE Applied Power Electronics Conference and Exposition (APEC), 2020, 2020-March, pp. 2854-2859
Issue Date:: 2020-06-25

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Field	Value	Language
dc.contributor.author	Cheng, T
dc.contributor.author	Dah-ChuanLu, D
dc.contributor.author	Siwakoti, YP
dc.date	2020-03-15
dc.date.accessioned	2021-06-03T04:41:29Z
dc.date.available	2021-06-03T04:41:29Z
dc.date.issued	2020-06-25
dc.identifier.citation	2020 IEEE Applied Power Electronics Conference and Exposition (APEC), 2020, 2020-March, pp. 2854-2859
dc.identifier.isbn	978-1-7281-4830-4
dc.identifier.issn	1048-2334
dc.identifier.issn	2470-6647
dc.identifier.uri	http://hdl.handle.net/10453/149388
dc.description.abstract	Due to the ongoing pursuit of high power density power supplies, thermal management becomes one of the most critical aspects to consider during the design phase for their stable and efficient operation. There are some reported electro-thermal models (ETMs) of power semiconductors and passive components, which help to estimate their electrical performance and temperature simultaneously. However, with the increase of the switching frequency for higher power density design, the simulation time increases accordingly. This can be effectively solved by adopting an averaged model of the converter. As the conventional average model is neither frequency nor temperature dependent with which are the two key parameters in ETM, modification is needed. Therefore, a modified electro-thermal average model (ETAM) of a boost converter considering self-heating phenomenon of all devices is proposed in this paper. This is achieved by a) adding additional behavior models to calculate the device losses; b) replacing the fixed resistance of each component with a temperature dependent one; c) using variable inductor and capacitor instead of a fixed value counterpart to obtain an accurate electrical model and precise losses estimation, and d) forming electrical and temperature feedback loops for each component. The advantages of the proposed research work are fast simulation speed, fairly accurate temperature prediction, and ease of implementation. Both the simulation and experimental results are given and compared to verify the proposed solution.
dc.language	en
dc.publisher	IEEE
dc.relation.ispartof	2020 IEEE Applied Power Electronics Conference and Exposition (APEC)
dc.relation.ispartof	IEEE Applied Power Electronics Conference and Exposition
dc.relation.ispartofseries	Annual IEEE Applied Power Electronics Conference and Exposition (APEC)
dc.relation.isbasedon	10.1109/apec39645.2020.9124306
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Electro-Thermal Average Modeling of a Boost Converter Considering Device Self-heating
dc.type	Conference Proceeding
utslib.citation.volume	2020-March
utslib.location.activity	New Orleans, LA, USA
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.consider-herdc	false
dc.date.updated	2021-06-03T04:41:27Z
pubs.finish-date	2020-03-19
pubs.publication-status	Published
pubs.start-date	2020-03-15
pubs.volume	2020-March

Abstract:

Due to the ongoing pursuit of high power density power supplies, thermal management becomes one of the most critical aspects to consider during the design phase for their stable and efficient operation. There are some reported electro-thermal models (ETMs) of power semiconductors and passive components, which help to estimate their electrical performance and temperature simultaneously. However, with the increase of the switching frequency for higher power density design, the simulation time increases accordingly. This can be effectively solved by adopting an averaged model of the converter. As the conventional average model is neither frequency nor temperature dependent with which are the two key parameters in ETM, modification is needed. Therefore, a modified electro-thermal average model (ETAM) of a boost converter considering self-heating phenomenon of all devices is proposed in this paper. This is achieved by a) adding additional behavior models to calculate the device losses; b) replacing the fixed resistance of each component with a temperature dependent one; c) using variable inductor and capacitor instead of a fixed value counterpart to obtain an accurate electrical model and precise losses estimation, and d) forming electrical and temperature feedback loops for each component. The advantages of the proposed research work are fast simulation speed, fairly accurate temperature prediction, and ease of implementation. Both the simulation and experimental results are given and compared to verify the proposed solution.

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http://hdl.handle.net/10453/149388