In this paper, two new methods for the stator skew are introduced. In contrary with the conventional stator skew, this paper is concentrate on the slot-opening skew. The simulation result by finite element shows a considerable reduction in the cogging torque of the motors, the new methods are applied to. Moreover the simulations justify that the back-EMF shape remains trapezoidal for various skew angles in contrary with that in the conventional skew, this fact makes the method highly applicable in BLDC motors.
Volum 009 | Număr 01 | Publicat la 01/01/2009 | Pagini: 28 | 10.4316/AECE.2009.01005 | ISSN 1582-7445 | eISSN 1844-7600