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A Dual Seven-Level Inverter Supply for an Open-End Winding Induction Motor Drive

Mondal, Gopal and Sivakumar, K and Ramchand, Rijil and Gopakumar, K and Levi, Emil (2009) A Dual Seven-Level Inverter Supply for an Open-End Winding Induction Motor Drive. In: IEEE Transactions on Industrial Electronics, 56 (5). pp. 1665-1673.

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This paper develops a seven-level inverter structure for open-end winding induction motor drives. The inverter supply is realized by cascading four two-level and two three-level neutral-point-clamped inverters. The inverter control is designed in such a way that the common-mode voltage (CMV) is eliminated. DC-link capacitor voltage balancing is also achieved by using only the switching-state redundancies. The proposed power circuit structure is modular and therefore suitable for fault-tolerant applications. By appropriately isolating some of the inverters, the drive can be operated during fault conditions in a five-level or a three-level inverter mode, with preserved CMV elimination and DC-link capacitor voltage balancing, within a reduced modulation range.

Item Type: Journal Article
Publication: IEEE Transactions on Industrial Electronics
Publisher: IEEE
Additional Information: Copyright 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE
Keywords: Capacitor voltage balancing;common-mode voltage (CMV) elimination;multilevel inverter;open-end winding induction motor.
Department/Centre: Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology)
Date Deposited: 03 Jul 2009 10:28
Last Modified: 19 Sep 2010 05:33
URI: http://eprints.iisc.ac.in/id/eprint/20570

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