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Improvement of post-fault performance of a cascaded H-bridge multilevel inverter.

Ouni, S. and Zolghadri, M. R. and Khodabandeh, M. and Shahbazi, M. and Rodriguez, J. and Oraee, H. and Lezana, P. and Schmeisser, A. U. (2017) 'Improvement of post-fault performance of a cascaded H-bridge multilevel inverter.', IEEE transactions on industrial electronics., 64 (4). pp. 2779-2788.

Abstract

This paper is focused on improving the post-fault performance of Cascaded H-bridge Multilevel Inverters by decreasing the common mode voltage. First, an algorithm is proposed to determine the optimal post-fault state among all possible states which have the same maximum available voltage. Furthermore, a modified technique is proposed to calculate the references of inverter phase voltages under faulty conditions. This technique leads to a decrease in the common mode voltage when the required output voltage is less than its maximum value. These solutions are mutually employed in the post-fault control system. Simulation and experimental results confirm the effectiveness of the proposed solutions in comparison with the existing methods in different cases.

Item Type:Article
Full text:(AM) Accepted Manuscript
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1109/TIE.2016.2632058
Publisher statement:© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Date accepted:17 October 2016
Date deposited:08 November 2016
Date of first online publication:22 November 2016
Date first made open access:08 November 2016

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