NDLI: Control of an induction machine fed by a Cascade Multicell converter under fault

Content Provider	IEEE Xplore Digital Library
Author	Lezana, P. Mora, A. Juliet, J. Silva, C.
Copyright Year	2009
Description	Author affiliation: Departamento de Ingeniería Eléctrica Universidad Técnica Federico Santa María Valparaíso, Chile (Lezana, P.; Mora, A.; Juliet, J.) \|\| Departamento de Electrónica Universidad Técnica Federico Santa María Valparaíso, Chile (Silva, C.)
Abstract	Multilevel Converters offer good quality load waveforms, which is clearly beneficial to its operation. A significant drawback that affects to all multilevel topologies is the high number of components required, which is related to a high fault probability. Among all the multilevel topologies, Cascade Multicell converters (CM), characterized by high modularity, allow for power to be easily increased. Moreover, this characteristic also allows any faulty module (cell) to be isolated, so the load can be fed by the remaining operational cells. Modifications to the modulation scheme, based either on the use of redundant states or on modified references have been proposed in literature, avoiding the unbalanced operation. This work presents the transient operation from normal to fault operation when modified references are used and an induction motor is driven by the converter. Modifications to the motor control scheme are proposed based on the use of field weakening to achieve operation and on-line speed reference modifications. In this way, hard torque pulsations are avoided, while the maximum power available from the converter is used.
Starting Page	1057
Ending Page	1062
File Size	1412173
Page Count	6
File Format	PDF
ISBN	9781424446483
ISSN	1553572X
e-ISBN	9781424446506
DOI	10.1109/IECON.2009.5414670
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-11-03
Publisher Place	Portugal
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Induction machines Topology Stators Pulse width modulation Motor drives Torque converters Inverters Frequency Voltage control Induction motors Control Multilevel converters Fault tolerance
Content Type	Text
Resource Type	Article

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