| US 7,388,310 B2 | ||
| Synchronous electrical machine comprising a stator and at least one rotor, and associated control device | ||
| Atef Abou-Akar, Lille d'Espagnac (France); and Jacques Saint-Michel, Angouleme (France) | ||
| Assigned to Moteurs Leroy-Somer, Angouleme (France) | ||
| Appl. No. 10/547,194 PCT Filed Mar. 29, 2004, PCT No. PCT/FR2004/000787 § 371(c)(1), (2), (4) Date Nov. 02, 2005, PCT Pub. No. WO2004/091075, PCT Pub. Date Oct. 21, 2004. |
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| Claims priority of application No. 03 03980 (FR), filed on Mar. 31, 2003. | ||
| Prior Publication US 2006/0097594 A1, May 11, 2006 | ||
| Int. Cl. H02K 1/27 (2006.01) | ||
| U.S. Cl. 310—156.48 [310/156.55; 310/156.56] | 19 Claims |
| 1. A synchronous electrical machine including a motor comprising:
a stator; and
at least one rotor having permanent magnets, wherein the motor is configured so as to have Xd>Xq, where Xd is the direct reactance and Xq is the quadrature reactance, wherein the rotor is a flux-concentrating rotor, the permanent magnets of the rotor being placed
between pole pieces,
wherein each of the pole pieces of the rotor has a salient part extending toward the stator, having radial edges that are
angularly offset relative to the radially directed edges of the permanent magnets adjacent the pole piece.
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