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Cited by 13

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Unbalanced currents effect on the thermal characteristic and reliability of parallel connected power switches

Rahimi, Tohid, Ding, Lei, Abadifard, Armin, Ghavidel, Pedram, Farhadi, Masoud, Faraji, Rasoul·2021·Case Studies in Thermal Engineering
DOI 10.1016/j.csite.2021.101134
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Abstract

In many industrial applications, parallel connection of power semiconductor switches is widely used to achieve higher power levels and fault-tolerant operation. But there is a current imbalance between parallel connected switches in practical applications. In this research, the impact of unbalanced currents on the junction temperature and the reliability of parallel connected switches are quantified and analyzed. Markov based reliability model is developed for quantitative assessment of reliability for parallel switches under different current sharing. The Mean Time to Failure (MTTF) is calculated for different conditions to be used as reliability metric for comparison of various conditions. A sensitivity analysis is also presented to show the effect of parameter variation on the junction temperatures of devices and reliability of the system. At last, a downscaled setup has been built up and tested. Experimental results verify the theoretical analysis and confirm procedure. Also, junction temperatures of power semiconductor devices are measured using thermal camera.

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Citations

Cites

Research works printed but not linked: 35

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Metadata

Authors
Rahimi, T., Ding, L., Abadifard, A., Ghavidel, P., Farhadi, M., & Faraji, R.
ORCID
Venue
Case Studies in Thermal Engineering
Publisher
Elsevier BV
Published
2021-08
Volume
26
Pages
101134
ISSN
2214-157X
DOI
10.1016/j.csite.2021.101134
Cited by
13
References
1
Language
en
Licence
Funders
China Postdoctoral Science Foundation (2019M662356, 2019M662357)

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