Six-Phase Supply Feasibility Using a PM Fractional-Slot Dual Winding Machine

The growing interest in fault-tolerant drives requires new solutions avoiding the adoption of custom and expensive configurations. The machine with a dual three-phase winding is an interesting candidate. It is provided with two windings, each of them fed by one converter of half power. With a proper...

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Bibliographic Details
Published in:IEEE transactions on industry applications 2011-09, Vol.47 (5), p.2042-2050
Main Authors: Barcaro, M., Bianchi, N., Magnussen, F.
Format: Article
Language:English
Subjects:
Brushless motors
Coils
Converters
Disengaging
Electric power generation
Fault tolerance
Fault tolerant systems
Faults
Feasibility
Harmonic analysis
Motor drives
permanent-magnet (PM) machines
PM motors
Stars
Torque
Winding
Windings
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Summary:The growing interest in fault-tolerant drives requires new solutions avoiding the adoption of custom and expensive configurations. The machine with a dual three-phase winding is an interesting candidate. It is provided with two windings, each of them fed by one converter of half power. With a proper mechanical and electrical arrangement, the machine can be exactly a six-phase machine, obtaining higher performance during healthy conditions. In the event of a fault, one of the two three-phase windings (the faulty one) is disconnected, and the machine is operated by means of the healthy winding only. This paper analyzes the feasibility of this dual winding configuration applied to a nonoverlapped-coil fractional-slot winding permanent-magnet machine. The star of slots is applied to highlight the proper winding candidates. The more interesting windings are deeply analyzed.
ISSN:0093-9994
1939-9367
DOI:10.1109/TIA.2011.2161859