A fault-tolerance topology of three-level four-leg NPC inverter

Autor: QIU Shiguang, LI Siguang
Jazyk: čínština
Rok vydání: 2016
Předmět:
Zdroj: Gong-kuang zidonghua, Vol 42, Iss 10, Pp 70-73 (2016)
Druh dokumentu: article
ISSN: 1671-251X
1671-251x
DOI: 10.13272/j.issn.1671-251x.2016.10.016
Popis: In view of problem that it is difficult to accurately locate device failure of inverter, a fault tolerance topology of three-level four-leg NPC inverter was proposed. In the topology, short-circuit fault and open-circuit fault can be located accurately by switching device used when topology changes, so as to provide a basis for fault-tolerant control of inverter. The topology enables half-leg replacement, and can achieve fault-tolerant control of up to three inverter legs at the same time.
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