Unbalanced Magnetic Force Calculation in Brushless DC Motors

Z. Valipoor; M. Jafarboland; Farid Salehi Nia; J. Shishegar; M. M. Sargazi

In this paper, an analytical method to calculate the unbalance magnetic pull forces (UMP) due to the eccentricity of the rotor with considering the slots impact, is presented. Unbalanced magnetic pull is important because it affects the wear on the bearings as well as noise and vibration. The results of the analytical method, using finite element analysis for a prototype motor, were valid. Some force harmonics have the potential to produce noise and vibration. In order to detect harmonics of unbalance magnet forces, Depending on the fault frequency, the stator currents and spectrum of the vibrations have been analyzed

Select Volume / Issues:

• Volume 6 Issue 2, Mar. 2015

Year:

2015

Type of Publication:

Article

Keywords:

Noise and Vibration; Unbalance Magnetic Forces; Eccentricity; Spectrum Analysis

Journal:

IJECCE

Volume:

6

Number:

2

Pages:

186-190

Month:

March

ISSN:

2278-4209