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Abstract
This paper proposes a fault-tolerant control strategy for a T-type three-level inverter when an open-circuit fault occurs. The proposed method is explained by dividing fault into two cases: the faulty condition of half-bridge switches and neutral-point switches. In case of the open-circuit fault in a neutral-point switch, two methods will be proposed and compared based on thermal analysis and neutral-point voltage oscillation. The reliability of T-type inverter systems is improved considerably by the proposed algorithm when a switch fails. The proposed method does not require any additional components. Simulation and experimental results verify the validity and feasibility of the proposed fault-tolerant control strategy.
Original language | English |
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Journal | I E E E Transactions on Power Electronics |
Volume | 30 |
Issue number | 5 |
Pages (from-to) | 2660 - 2673 |
Number of pages | 14 |
ISSN | 0885-8993 |
DOIs | |
Publication status | Published - May 2015 |
Keywords
- Fault-tolerance
- Multilevel
- Reliability
- Sspace-vector modulation
- T-type inverter
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Dive into the research topics of 'Reliability Improvement of a T-Type Three-Level Inverter With Fault-Tolerant Control Strategy'. Together they form a unique fingerprint.Projects
- 1 Finished
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Center Of Reliable Power Electronics (CORPE)
Blaabjerg, F., Munk-Nielsen, S., Pedersen, K. & Popok, V.
01/04/2011 → 31/12/2016
Project: Research