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Fault-Tolerant Five-Leg Converter Topology With FPGA-Based Reconfigurable Control

Shahbazi, M.; Poure, P.; Saadate, S.; Zolghadri, M.R.

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P. Poure

S. Saadate

M.R. Zolghadri


Fast fault detection and reconfiguration of power converters is necessary in electrical drives to prevent further damage and to make the continuity of service possible. On the other hand, component minimized converters may provide the benefits of higher reliability and less volume and cost. In this paper, a new fault-tolerant converter topology is studied. This converter has five legs before the fault occurrence, and after fault detection the converter continues to function with four legs. A very fast fault detection and reconfiguration scheme is presented and studied. Simulations and experimental tests are performed to evaluate the structure requirements, the digital reconfigurable controller, and fault detection scheme. For experimental tests, the control and the fault detection and reconfiguration schemes are implemented on a single field-programmable gate array (FPGA) chip. Experimental and simulation results show the effectiveness of the proposed fault-tolerant topology and its FPGA-based control.

Journal Article Type Article
Acceptance Date Feb 29, 2012
Online Publication Date Mar 22, 2012
Publication Date Jun 1, 2013
Deposit Date Apr 26, 2016
Publicly Available Date Apr 27, 2016
Journal IEEE Transactions on Industrial Electronics
Print ISSN 0278-0046
Publisher Institute of Electrical and Electronics Engineers
Peer Reviewed Peer Reviewed
Volume 60
Issue 6
Pages 2284-2294
Public URL


Accepted Journal Article (8.7 Mb)

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