Reliability Assessment of Conventional Isolated PWM DC-DC Converters

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openAccess

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Journal Title

Journal ISSN

Volume Title

A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2021-03-22

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Mcode

Degree programme

Language

en

Pages

10
46191-46200

Series

IEEE Access, Volume 9

Abstract

This paper sets forth the reliability analysis of conventional isolated pulse width modulation DC-DC (IDC-DC) converters. The IDC-DC converters are categorized into isolated single-switch DC-DC (ISSDC-DC) or multiple-switch DC-DC (IMSDC-DC) converters. The proposed framework encompasses analyzing the impacts of duty cycle, input voltage, output power, transformer turns ratio, components characteristics and time duration on the overall reliability performance of the IDC-DC converters. The suggested reliability assessment is centered on Markov models characterized by taking into consideration all open and short circuit faults on the components in both continuous and discontinuous conduction modes. We further investigate the self-embedded fault tolerant capability of the IMSDC-DC converters under open circuit fault scenarios on the switches, diodes and blocking capacitors, where we offer new reliability analytics. Along with extensive analyses and comparisons, several experimental results are provided to verify the self-embedded fault tolerant capability of IMSDC-DC converters.

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Publisher Copyright: CCBY Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

Keywords

fault analysis, Fault tolerance, Fault tolerant systems, isolated multiple-switch DC-DC converter (IMSDC-DC), Isolated single-switch DC-DC converter (ISSDC-DC), Markov process, Markov processes, Power electronics, Power system reliability, Reliability, reliability, Reliability engineering

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Citation

Tarzamni, H, Esmaeelnia, F P, Tahami, F, Fotuhi-Firuzabad, M, Dehghanian, P, Lehtonen, M & Blaabjerg, F 2021, ' Reliability Assessment of Conventional Isolated PWM DC-DC Converters ', IEEE Access, vol. 9, 9382999, pp. 46191-46200 . https://doi.org/10.1109/ACCESS.2021.3067935