Open AccessCogging Torque Reduction in Brushless DC Motors Using Slot-Opening Shift
Author(s) -
Seyedamin Saied,
Karim Abbaszadeh
Publication year - 2009
Publication title -
advances in electrical and computer engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 23
eISSN - 1844-7600
pISSN - 1582-7445
DOI - 10.4316/aece.2009.01005
Subject(s) - skew , stator , cogging torque , reduction (mathematics) , torque , dc motor , control theory (sociology) , computer science , automotive engineering , electrical engineering , engineering , mathematics , physics , artificial intelligence , telecommunications , control (management) , geometry , thermodynamics
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 simula-tion 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