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Five-level inverter scheme for an open-end winding induction machine with less number of switches

Figarado, S and Sivakumar, K and Ramchand, R and Das, A and Patel, C and Gopakumar, K (2010) Five-level inverter scheme for an open-end winding induction machine with less number of switches. In: IET Power Electronics, 3 (4). pp. 637-647.

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Abstract

Higher level of inversion is achieved with a less number of switches in the proposed scheme. The scheme proposes a five-level inverter for an open-end winding induction motor which uses only two DC-link rectifiers of voltage rating of Vdc/4, a neutral-point clamped (NPC) three-level inverter and a two-level inverter. Even though the two-level inverter is connected to the high-voltage side, it is always in square-wave operation. Since the two-level inverter is not switching in a pulse width modulated fashion and the magnitude of switching transient is only half compared to the convention three-level NPC inverter, the switching losses and electromagnetic interference is not so high. The scheme is experimentally verified on a 2.5 kW induction machine.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to The Institution of Engineering and Technology.
Department/Centre: Division of Electrical Sciences > Electronic Systems Engineering (Formerly, (CEDT) Centre for Electronic Design & Technology)
Date Deposited: 05 Apr 2011 10:59
Last Modified: 05 Apr 2011 10:59
URI: http://eprints.iisc.ernet.in/id/eprint/36588

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