Analysis of the induced EMF in permanent magnet brushless motors

Author

Izhar, Tahir ; Malik, Arif

Author_Institution

Univ. of Eng. & Technol., Lahore

fYear

2008

fDate

25-26 March 2008

Firstpage

1

Lastpage

5

Abstract

The performance of permanent magnet brushless DC motors depends on their winding and magnetic designs. The conductor distribution and flux density distribution profiles determine the shape of induced EMF waveform. The shape of the induced EMF of the machine can be used to predict its torque performance. This paper presents a new method to analyze the induced EMF of the permanent magnet brushless motors including the effect of fringing and leakage flux. The Fourier harmonic method is used to analyze the induced EMF. The induced EMF is constructed in time using the harmonics for few typical machine designs.

Keywords

Fourier analysis; brushless DC motors; electric potential; permanent magnet motors; Fourier harmonic method; conductor distribution; flux density distribution; induced EMF; leakage flux; magnetic designs; permanent magnet brushless DC motors; winding designs; Brushless DC motors; Brushless motors; Commutation; DC machines; DC motors; Magnetic analysis; Rotors; Servomechanisms; Shape; Torque control; Brushless DC Motor; Induced EMF; Permanent Magnet;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering, 2008. ICEE 2008. Second International Conference on

Conference_Location

Lahore

Print_ISBN

978-1-4244-2292-0

Electronic_ISBN

978-1-4244-2293-7

Type

conf

DOI

10.1109/ICEE.2008.4553898

Filename

4553898