Title :
Comparison of the Iron Loss of a Flux-Reversal Machine Under Four Different PWM Modes
Author :
Kim, Tae Heoung ; Lee, Ju
Author_Institution :
Nat. Univ., Gyeongnam
fDate :
4/1/2007 12:00:00 AM
Abstract :
A flux-reversal machine (FRM) is a new doubly salient stator-permanent magnet (PM) machine with flux linkage reversal in the stator concentrated windings. It can be driven by 120deg square-wave voltage and use pulse-width modulation (PWM) patterns in two-phase feeding schemes to control the speed of the machine. This paper introduces four PWM modes that used the FRM control system and analyzes the effects of four different PWM modes on the iron loss using a 2-D time-stepped voltage source finite-element method. The iron loss is calculated from the time variation of the magnetic field distribution
Keywords :
angular velocity control; finite element analysis; losses; machine control; permanent magnet machines; pulse width modulation; stators; PWM modes; doubly salient stator-permanent magnet machine; finite element method; flux linkage reversal; flux-reversal machine control system; iron loss; machine speed control; magnetic field distribution; pulse width modulation patterns; square-wave voltage; stator concentrated windings; two-phase feeding schemes; Control system analysis; Control systems; Couplings; Iron; Machine windings; Magnetic flux; Pulse width modulation; Space vector pulse width modulation; Stator windings; Voltage control; Eddy current loss; finite-element method (FEM); flux-reversal machine (FRM); hysteresis loss; iron loss; permanent magnet (PM);
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.892287
