High Performance Parallel Single-Phase Converter Reconfiguration for Enhanced Availability

Mohammadhassan Hedayati (Corresponding Author), Vinod John

Research output: Contribution to journalArticle

Abstract

Paralleling power converters is a common practice in industries to enhance total power rating, reliability, and availability of the system. In case of fault occurring in systems with parallel converters, the faulty power converter can be isolated and the system can still be operated at reduced power level. In this paper, a grid-connected power converter consisting of two parallel H-bridge converter, with low ground leakage current, is considered. Two contingency configurations, that are also of low ground leakage current, are proposed to enhance the availability of the system. This is done by reconfiguring the power circuit to a single H-bridge, in the case of failure in one of the bridges. The power converter is experimentally tested with the proposed configurations for experimental validation. The results show that, the second configuration has better performance in terms of power loss and current THD when operating at lower power level.
Original languageEnglish
Pages (from-to)388 - 394
Number of pages7
JournalIEEE Transactions on Industry Applications
Volume54
Issue number1
Early online date15 Aug 2017
DOIs
Publication statusPublished - 30 Jan 2018

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Power converters
Availability
Leakage currents
Networks (circuits)
Industry

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High Performance Parallel Single-Phase Converter Reconfiguration for Enhanced Availability. / Hedayati, Mohammadhassan (Corresponding Author); John, Vinod.

In: IEEE Transactions on Industry Applications, Vol. 54, No. 1, 30.01.2018, p. 388 - 394.

Research output: Contribution to journalArticle

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