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Improving the torque output in radial- and axial-flux permanent-magnet synchronous machines with concentrated windings by using a combined Wye-Delta connection

Hendrik Vansompel (UGent) , Peter Sergeant (UGent) , Luc Dupré (UGent) and Alex Van den Bossche (UGent)
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Abstract
In this paper, a combined wye-delta connection is introduced and compared with a common wye-connection of a concentrated winding. Because the combined wye-delta connection has a higher fundamental winding factor, the output torque is higher for the same current density when a sinusoidal current is imposed. As the combined wye-delta connection has only a minor influence on the losses in the machine, the efficiency of the machine is also increased. The combined wye-delta connection is illustrated in detail for an axial-flux permanent-magnet synchronous machine with a rated power of 4.5 kW at a fixed speed of 2500 rpm, using finite element computation.
Keywords
concentrated winding, axial flux machine, combined wye-delta connection, winding factor, Permanent magnet machines

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Citation

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Chicago
Vansompel, Hendrik, Peter Sergeant, Luc Dupré, and Alex Van den Bossche. 2011. “Improving the Torque Output in Radial- and Axial-flux Permanent-magnet Synchronous Machines with Concentrated Windings by Using a Combined Wye-Delta Connection.” In 2011 IEEE International Electric Machines & Drives Conference (IEMDC), 336–341. New York, NY, USA: IEEE.
APA
Vansompel, H., Sergeant, P., Dupré, L., & Van den Bossche, A. (2011). Improving the torque output in radial- and axial-flux permanent-magnet synchronous machines with concentrated windings by using a combined Wye-Delta connection. 2011 IEEE International Electric Machines & Drives Conference (IEMDC) (pp. 336–341). Presented at the 2011 IEEE International Electric Machines and Drives Conference (IEMDC 2011), New York, NY, USA: IEEE.
Vancouver
1.
Vansompel H, Sergeant P, Dupré L, Van den Bossche A. Improving the torque output in radial- and axial-flux permanent-magnet synchronous machines with concentrated windings by using a combined Wye-Delta connection. 2011 IEEE International Electric Machines & Drives Conference (IEMDC). New York, NY, USA: IEEE; 2011. p. 336–41.
MLA
Vansompel, Hendrik, Peter Sergeant, Luc Dupré, et al. “Improving the Torque Output in Radial- and Axial-flux Permanent-magnet Synchronous Machines with Concentrated Windings by Using a Combined Wye-Delta Connection.” 2011 IEEE International Electric Machines & Drives Conference (IEMDC). New York, NY, USA: IEEE, 2011. 336–341. Print.
@inproceedings{1250389,
  abstract     = {In this paper, a combined wye-delta connection is introduced and compared with a common wye-connection of a concentrated winding. Because the combined wye-delta connection has a higher fundamental winding factor, the output torque is higher for the same current density when a sinusoidal current is imposed. As the combined wye-delta connection has only a minor influence on the losses in the machine, the efficiency of the machine is also increased.
The combined wye-delta connection is illustrated in detail for an axial-flux permanent-magnet synchronous machine with a rated power of 4.5 kW at a fixed speed of 2500 rpm, using finite element computation.},
  author       = {Vansompel, Hendrik and Sergeant, Peter and Dupré, Luc and Van den Bossche, Alex},
  booktitle    = {2011 IEEE International Electric Machines & Drives Conference (IEMDC)},
  isbn         = {9781457700590},
  keywords     = {concentrated winding,axial flux machine,combined wye-delta connection,winding factor,Permanent magnet machines},
  language     = {eng},
  location     = {Niagara Falls, ON, Canada},
  pages        = {336--341},
  publisher    = {IEEE},
  title        = {Improving the torque output in radial- and axial-flux permanent-magnet synchronous machines with concentrated windings by using a combined Wye-Delta connection},
  url          = {http://dx.doi.org/10.1109/IEMDC.2011.5994941},
  year         = {2011},
}

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