DocumentCode :
1010115
Title :
A Dual Seven-Level Inverter Supply for an Open-End Winding Induction Motor Drive
Author :
Mondal, Gopal ; Sivakumar, K. ; Ramchand, Rijil ; Gopakumar, K. ; Levi, Emil
Author_Institution :
Sch. of Electr. & Electron. Eng., Univ. of Nottingham, Nottingham
Volume :
56
Issue :
5
fYear :
2009
fDate :
5/1/2009 12:00:00 AM
Firstpage :
1665
Lastpage :
1673
Abstract :
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.
Keywords :
induction motor drives; invertors; DC-link capacitor voltage balancing; common-mode voltage elimination; fault conditions; inverter control; neutral-point-clamped inverters; open-end winding induction motor drive; seven-level inverter supply; three-level inverter mode; Capacitor voltage balancing; common-mode voltage (CMV) elimination; multilevel inverter; open-end winding induction motor;
fLanguage :
English
Journal_Title :
Industrial Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0278-0046
Type :
jour
DOI :
10.1109/TIE.2008.2010159
Filename :
4689396
Link To Document :
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