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Multilevel Dodecagonal Voltage Space Vector Generation using Flying Capacitor topology for Induction motor drives

Mathew, Jaison and Rajeevan, PP and Mathew, K and Azeez, Najath Abdul and Gopakumar, K (2012) Multilevel Dodecagonal Voltage Space Vector Generation using Flying Capacitor topology for Induction motor drives. In: IEEE Energy Conversion Congress and Exposition (ECCE) , SEP 15-20, 2012 , Raleigh, NC , pp. 1136-1142.

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Official URL: http://dx.doi.org/10.1109/ECCE.2012.6342690

Abstract

In this paper, a multilevel flying capacitor inverter topology suitable for generating multilevel dodecagonal space vectors for an induction motor drive, is proposed. Because of the dodecagonal space vectors, it has increased modulation range with the absence of all 6n +/- 1, (n=odd) harmonics in the phase voltage and currents. The topology, realized by flying capacitor three level inverters feeding an open-end winding induction motor, does not suffer the neutral point voltage imbalance issues seen in NPC inverters and the capacitors have inherent charge-balancing capability with PWM control using switching state redundancies. Furthermore, the proposed technique uses lesser number of power supplies compared to cascaded H-bridge or NPC based dodecagonal schemes and has better ride-through capability. Finally, the voltage control is obtained through a simple carrier-based space vector PWM scheme implemented on a DSP.

Item Type: Conference Paper
Additional Information: Copyright for this article belongs to IEEE, NEW YORK
Department/Centre: Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology)
Depositing User: Francis Jayakanth
Date Deposited: 22 Feb 2013 09:30
Last Modified: 22 Feb 2013 09:30
URI: http://eprints.iisc.ac.in/id/eprint/45873

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