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A Multilevel Inverter Fed IM Drive with Dodecagonal Voltage Space Vector Structure using a Single DC Source with Linear Modulation Range Near to Base Speed

Boby, Mathews and Pramanick, Sumit and Rahul, Arun S and Gopakumar, K and Umanand, L (2016) A Multilevel Inverter Fed IM Drive with Dodecagonal Voltage Space Vector Structure using a Single DC Source with Linear Modulation Range Near to Base Speed. In: 18th European Conference on Power Electronics and Applications (EPE), SEP 05-09, 2016, GERMANY.

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Abstract

A fifth and seventh order harmonic elimination scheme for IM drive with a multilevel dodecagonal voltage space vector structure using a single DC source is proposed in this work. Single DC source requirement makes four quadrant operation of the drive system simpler compared to the multilevel dodecagonal structures presented in literatures before. The space vector structure consists of six concentric dodecagons, combining the advantages of multilevel operation as well as dodecagonal structure. The topology consists of a three-level flying capacitor (FC) inverter cascaded with a capacitor fed H-bridge (CHB) inverter. The FC inverter operating at high voltage switches in a quasi-square wave mode whereas the CHB inverter operating at a lower voltage switches at high frequency to remove the harmonics generated by the FC inverter. Switching losses are low, both in the FC and CHB inverters. Experiment results for open-loop V/f operation are included in this paper showing the effectiveness of the drive scheme.

Item Type: Conference Paper
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Additional Information: Copy right for this article belongs to the IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Department/Centre: Others
Date Deposited: 07 Dec 2016 07:11
Last Modified: 07 Dec 2016 07:11
URI: http://eprints.iisc.ernet.in/id/eprint/55489

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