A unique fault-tolerant design for flying capacitor multilevel inverter

Xiaomin Kou, Keith A. Corzine, Yakov L. Familiant

Research output: Contribution to journalArticle

123 Citations (Scopus)

Abstract

This paper presents a unique design for flying capacitor type multilevel inverters with fault-tolerant features. When a single-switch fault per phase occurs, the new design can still provide the same number of converting levels by shorting the fault power semiconductors and reconfiguring the gate controls. The most attractive point of the proposed design is that it can undertake the single-switch fault per phase without sacrificing power converting quality. Future, more, if multiple faults occur in different phases and each phase have only one fault switch, the proposed design can still conditionally provide consistent voltage converting levels. This paper will also discuss the capacitor balancing approach under fault-conditions, which is an essential part of controlling flying capacitor type multilevel inverters. Suggested fault diagnosing methods are also discussed in this paper. Computer simulation and lab results validate the proposed controls.

Original languageEnglish
Pages (from-to)979-987
Number of pages9
JournalIEEE Transactions on Power Electronics
Volume19
Issue number4
DOIs
Publication statusPublished - 2004
Externally publishedYes

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Capacitors
Switches
Semiconductor materials
Computer simulation
Electric potential

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

A unique fault-tolerant design for flying capacitor multilevel inverter. / Kou, Xiaomin; Corzine, Keith A.; Familiant, Yakov L.

In: IEEE Transactions on Power Electronics, Vol. 19, No. 4, 2004, p. 979-987.

Research output: Contribution to journalArticle

Kou, Xiaomin ; Corzine, Keith A. ; Familiant, Yakov L. / A unique fault-tolerant design for flying capacitor multilevel inverter. In: IEEE Transactions on Power Electronics. 2004 ; Vol. 19, No. 4. pp. 979-987.
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