Competitive study on reliability of difference voltage levels of NPC multilevel inverters

The issue of reliability in power electronic converters (PECs) has received comparatively less attention by researchers. Among PECs, the multilevel inverter is a favourite choice of industry in the area of medium-voltage and high-power uses. To study the reliability of PECs, first, the failure rates...

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Bibliographic Details
Published in:Electronics letters 2018-08, Vol.54 (17), p.1047-1049
Main Authors: Ghodsi, M, Barakati, S.M, Sadr, S.M
Format: Article
Language:English
Subjects:
3‐level neutral point
5‐level neutral point
appropriate converter
clamps
difference voltage levels
failure rate
high‐power uses
invertors
medium‐voltage
NPC multilevel inverters
PECs
power convertors
power electronic converters
power electronics
Power electronics, energy conversion and sustainability
power system reliability
relevant standard
reliability indices
reliability study
switching convertors
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Summary:The issue of reliability in power electronic converters (PECs) has received comparatively less attention by researchers. Among PECs, the multilevel inverter is a favourite choice of industry in the area of medium-voltage and high-power uses. To study the reliability of PECs, first, the failure rates of elements such as diodes, capacitors, and switches are introduced based on a relevant standard. Then, the reliability indices of two converters, 3-level and 5-level neutral point clamped, are calculated and compared. The results of the reliability study indicate an appropriate converter for sensitive application in industry.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2018.0264