Affiliations: Science and Technology on Inertial Laboratory, Fundamental Science on Novel Inertial Instrument and Navigation System Technology Laboratory, School of Instrument Science and Opto-electronics Engineering, Beihang University, Beijing, China
Abstract: The electrical frequency of high speed permanent magnet motor leads to
pronounced parasitic effects, such as skin, proximity and circulating
current effects. The parasitic effects result in uneven distribution of
currents and the increase of the ac resistance of the winding. Ac resistance
is proportional to the winding loss and the ratio of ac resistance of
winding to dc resistance of winding is used to characterize the winding
loss. The parameters of winding, as well as the parameters of slot
dimensions of stator, will affect the degree of parasitic effects. The
influences of some design parameters are analyzed in this paper.
Keywords: Winding loss, high speed permanent magnet motor, low voltage, high frequency, parasitic effects
