Cogging Torque Reduction in Brushless DC Motors Using Slot-Opening Shift

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.

Cogging Torque Reduction in Brushless DC Motors Using Slot-Opening Shift.

Advances in Electrical and Computer Engineering

Volum 009 | Număr 01 | Publicat la 01/01/2009 | Pagini:  28 | 10.4316/AECE.2009.01005 | ISSN  1582-7445 | eISSN  1844-7600

Autori:
Seyed A. SAIED [1] | Karim Abbaszadeh [1]
[1] Department of Electrical Engineering, K.N.Toosi University of Technology Seyed Khandan Bridge, 1431714191 Tehran, Iran
Rezumat

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.

Cuvinte cheie:
Permanent Magnet Motors, Finite Element Methods, Brushless Rotating Machines, Optimization methods
©   UEFISCDI 2010
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