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Paper Information

Journal:   INTERNATIONAL JOURNAL OF ENGINEERING   APRIL 2004 , Volume 17 , Number 1 (TRANSACTIONS B: APPLICATIONS); Page(s) 51 To 58.
 
Paper: 

A NOVEL TECHNIQUE ON THE ANALYTICAL CALCULATION OF OPEN-CIRCUIT FLUX DENSITY DISTRIBUTION IN BRUSHLESS PERMANENT - MAGNET MOTOR

 
 
Author(s):  MOALEM M., KIOUMARSI A., HASANZADEH M.R.
 
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Abstract: 
Both the cogging and electromagnetic torques depends on the shape of the flux ‎density distribution in the airgap region. A two-dimensional (2-D) analytical method ‎for predicting the open-circuit airgap field distribution in brushless permanent magnet ‎motors, considering the direction of magnetization, i.e., radial or parallel, and the ‎effect of real shape of stator slot-openings is presented in this paper. It involves the ‎solution of the governing field equations in polar coordinated in airgap and magnet ‎regions. This method uses a new 2-D relative permeance function. For the comparison ‎purposes, a 2-D finite element (FE) analysis is used for the analysis of a fully-pitched, ‎double-layer windings brushless permanent - magnet (PM) drive. The results obtained ‎by this method are very close to those obtained by FE analysis especially at the corner ‎tips of the tooth‏.‏
 
Keyword(s): BRUSHLESS PERMANENT MAGNET MOTOR, ANALYTICAL METHOD, FINITE ELEMENT METHOD
 
References: 
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