AUTHOR : Jae-Woo Jung, Soon-O Kwon, Ji-Hyung Ban, Jung Pyo Hong
ORGANIZATION : Compumag2007
JOURNAL :
YEAR : 2007.06
VOL : CD
ISSUE :
PAGE : ~
Abstract — This paper deals with the optimum design to
reduce eddy current loss in permanent magnet (PM). Instead
of direct calculation of eddy current loss using 3D transient
magnetic field analysis, indirect method is used. To estimate
eddy current loss indirectly, magneto-static field analysis is
conducted and flux density variation in PM is used for
estimating eddy current loss based on the fact that eddy
current loss is proportional to square of flux density and
frequency. RSM coupled with DOE is used for optimum
design with the object function of THD of flux density
variation in PM. Motor design process ensuring minimum
variation of flux density in PM is presented and transient
analysis is used for verification of optimum design.