Effect of paralleling switches on reduction of reliability of fuel cell DC-DC converters

Author

Ranjbar, A.H. ; Abdi, B. ; MahinFallah, O.

Author_Institution

Amirkabir Univ. of Technol., Tehran

fYear

2008

fDate

24-28 Feb. 2008

Firstpage

304

Lastpage

308

Abstract

Reliability plays an important role in industrial systems, and if a system has a low reliability, it would not be suitable for high-reliability and high-availability systems. In this paper, reliability of three DC-DC converters compliant with fuel cell applications is calculated. In one of these applications switch-paralleling method for increasing the current rating, and where the number of switches is increased for the purposes of this study. It is shown in this study, based on comparison of results of reliability calculations for each converter type, that this paralleling has caused extreme decreased reliability proportional to incremental increase in number of used switches.

Keywords

DC-DC power convertors; field effect transistor switches; fuel cells; MOSFET switches; fuel cell DC-DC converters; paralleling switches; reliability calculations; Boosting; DC-DC power converters; Fuel cells; MOSFETs; Materials reliability; Power generation; Power system reliability; Stress; Switches; Switching converters; DC-DC Converter; MOSFETs; Reliability; availability; fuel cell; number of switches; paralleling;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2008. APEC 2008. Twenty-Third Annual IEEE

Conference_Location

Austin, TX

ISSN

1048-2334

Print_ISBN

978-1-4244-1873-2

Electronic_ISBN

1048-2334

Type

conf

DOI

10.1109/APEC.2008.4522738

Filename

4522738