ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

An Open-End winding IM drive with Multilevel 12-sided Polygonal Vectors with Symmetric Triangles

Kaarthik, Sudharshan R and Gopakumar, K and Mathew, Jaison and Undeland, Tore (2014) An Open-End winding IM drive with Multilevel 12-sided Polygonal Vectors with Symmetric Triangles. In: 16th European Conference on Power Electronics and Applications (EPE-ECCE Europe), AUG 26-28, 2014, Lappeenranta, FINLAND.

[img] PDF
2014_16th_Eur_Con_on_Poe_Ele_and_App_ 2014.pdf - Published Version
Restricted to Registered users only

Download (521kB) | Request a copy
Official URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumbe...

Abstract

Multilevel inverters with hexagonal voltage space vector structures have improved performance of induction motor drives compared to that of the two level inverters. Further reduction in the torque ripple on the motor shaft is possible by using multilevel dodecagonal (12-sided polygon) voltage space vector structures. The advantages of dodecagonal voltage space vector based PWM techniques are the complete elimination of fifth and seventh harmonics in phase voltages for the full modulation range and the extension of linear modulation range. This paper proposes an inverter circuit topology capable of generating multilevel dodecagonal voltage space vectors with symmetric triangles, by cascading two asymmetric three level inverters with isolated H-Bridges. This is made possible by proper selection of DC link voltages and the selection of resultant switching states for the inverters. In this paper, a simple PWM timing calculation method is proposed. Experimental results have also been presented in this paper to validate the proposed concept.

Item Type: Conference Proceedings
Additional Information: Copy right for this article belongs to the IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Keywords: Adjustable speed drive; Multilevel converters; Pulse Width Modulation (PWM); Voltage Source Inverters (VSI); Induction motor
Department/Centre: Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology)
Depositing User: Id for Latest eprints
Date Deposited: 31 Oct 2015 05:41
Last Modified: 31 Oct 2015 05:41
URI: http://eprints.iisc.ac.in/id/eprint/52623

Actions (login required)

View Item View Item