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Abstract
This paper proposes a reliability modeling approach and a reliability measure for redundant power converters with the possibility of de-rated operation. The proposed model takes into account the operating condition and its impact on the converter failure rate. Furthermore, the proposed reliability index is based on an availability measure, hence incorporating the impact of maintenance on the converter performance. However, the conventional reliability modeling approaches rely on either the probability of failure or availability based on the average failure rate. As a result, the proposed method introduces more accurate and realistic reliability performance. The proposed model is applicable for reliability assessment in power electronics systems for expert decision-making in asset management. The proposed approach is examined using a multi-level converter and a proper control system is proposed to operate the converter under de-rated operating conditions. The numerical analysis shows the proficiency of the proposed reliability modeling approach.
Original language | English |
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Title of host publication | Proceedings of the 2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia) |
Number of pages | 8 |
Place of Publication | Himeji, Japan |
Publisher | IEEE |
Publication date | May 2022 |
Pages | 2544-2551 |
Article number | 9806972 |
ISBN (Print) | 978-1-6654-1631-3 |
ISBN (Electronic) | 978-4-8868-6425-3 |
DOIs | |
Publication status | Published - May 2022 |
Event | 2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia) - Himeji, Japan Duration: 15 May 2022 → 19 May 2022 |
Conference
Conference | 2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia) |
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Location | Himeji, Japan |
Period | 15/05/2022 → 19/05/2022 |
Keywords
- Availability
- De-rated operation
- Redundant converter
- Reliability
Fingerprint
Dive into the research topics of 'Reliability Modeling and Assessment of De-rated Redundant Power Converters'. Together they form a unique fingerprint.Projects
- 1 Finished
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REPEPS: REliable Power Electronic based Power System
Blaabjerg, F., Iannuzzo, F., Davari, P., Wang, H., Wang, X. & Yang, Y.
01/08/2017 → 01/12/2023
Project: Research