System-level Reliability Assessment of Power Stage in Fuel Cell Application

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

17 Citations (Scopus)

Abstract

High efficient and less pollutant fuel cell stacks are emerging and strong candidates of the power solution used for mobile base stations. In the application of the backup power, the availability and reliability hold the highest priority. This paper considers the reliability metrics from the component-level to the system-level for the power stage used in a fuel cell application. It starts with an estimation of the annual accumulated damage for the key power electronic components according to the real mission profile of the fuel cell system. Then, considering the parameter variations in both the lifetime model and the stress levels, the Weibull distribution of the power semiconductors lifetime can be obtained by using Monte Carlo analysis. Afterwards, the reliability block diagram can further be adopted to evaluate the reliability of the power stage based on the estimated power semiconductor reliability. In a case study of a 5 kW fuel cell power stage, the parameter variations of the lifetime model prove that the exponential factor of the junction temperature fluctuation is the most sensitive parameter. Besides, if a 5-out-of-6 redundancy is used, it is concluded both the B10 and the B1 system-level lifetime can be remarkably increased compared to when no redundancy is used.
Original languageEnglish
Title of host publicationProceedings of the 2016 IEEE Energy Conversion Congress and Exposition (ECCE)
Number of pages8
PublisherIEEE Press
Publication dateSep 2016
ISBN (Electronic)978-1-5090-0737-0
DOIs
Publication statusPublished - Sep 2016
Event 8th Annual IEEE Energy Conversion Congress & Exposition: ECCE 2016 - Milwaukee, WI, United States
Duration: 18 Sep 201622 Sep 2016
http://www.ieee-ecce.org/

Conference

Conference 8th Annual IEEE Energy Conversion Congress & Exposition
CountryUnited States
CityMilwaukee, WI
Period18/09/201622/09/2016
SponsorIEEE, IEEE Industry Applications Society (IAS), IEEE Power Electronics and Industry Applications Societies (PELS)
Internet address

Fingerprint

Fuel cells
Redundancy
Semiconductor materials
Weibull distribution
Power electronics
Base stations
Availability
Temperature

Cite this

Zhou, D., Wang, H., Blaabjerg, F., Kær, S. K., & Hansen, D. B. (2016). System-level Reliability Assessment of Power Stage in Fuel Cell Application. In Proceedings of the 2016 IEEE Energy Conversion Congress and Exposition (ECCE) IEEE Press. https://doi.org/10.1109/ECCE.2016.7855492
Zhou, Dao ; Wang, Huai ; Blaabjerg, Frede ; Kær, Søren Knudsen ; Hansen, Daniel Blom. / System-level Reliability Assessment of Power Stage in Fuel Cell Application. Proceedings of the 2016 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE Press, 2016.
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Zhou, D, Wang, H, Blaabjerg, F, Kær, SK & Hansen, DB 2016, System-level Reliability Assessment of Power Stage in Fuel Cell Application. in Proceedings of the 2016 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE Press, 8th Annual IEEE Energy Conversion Congress & Exposition, Milwaukee, WI, United States, 18/09/2016. https://doi.org/10.1109/ECCE.2016.7855492

System-level Reliability Assessment of Power Stage in Fuel Cell Application. / Zhou, Dao; Wang, Huai; Blaabjerg, Frede; Kær, Søren Knudsen; Hansen, Daniel Blom.

Proceedings of the 2016 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE Press, 2016.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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AB - High efficient and less pollutant fuel cell stacks are emerging and strong candidates of the power solution used for mobile base stations. In the application of the backup power, the availability and reliability hold the highest priority. This paper considers the reliability metrics from the component-level to the system-level for the power stage used in a fuel cell application. It starts with an estimation of the annual accumulated damage for the key power electronic components according to the real mission profile of the fuel cell system. Then, considering the parameter variations in both the lifetime model and the stress levels, the Weibull distribution of the power semiconductors lifetime can be obtained by using Monte Carlo analysis. Afterwards, the reliability block diagram can further be adopted to evaluate the reliability of the power stage based on the estimated power semiconductor reliability. In a case study of a 5 kW fuel cell power stage, the parameter variations of the lifetime model prove that the exponential factor of the junction temperature fluctuation is the most sensitive parameter. Besides, if a 5-out-of-6 redundancy is used, it is concluded both the B10 and the B1 system-level lifetime can be remarkably increased compared to when no redundancy is used.

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Zhou D, Wang H, Blaabjerg F, Kær SK, Hansen DB. System-level Reliability Assessment of Power Stage in Fuel Cell Application. In Proceedings of the 2016 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE Press. 2016 https://doi.org/10.1109/ECCE.2016.7855492