ORGANIZATION : International Conference on Electrical Machines and Systems
JOURNAL :
YEAR : 2013.10
VOL :
PAGE : 134~138
This paper focuses on estimating the temperature
of end winding, in which the highest temperature exists out of all
the components, in Interior Permanent Magnet Synchronous
Motor (IPMSM) for in-wheel direct drive. A lumped parameter
thermal model of IPMSM is suggested with considering core,
copper, mechanical, and eddy current losses, which are the heat
sources and calculated from finite element analysis to improve
the accuracy of the prediction. In addition, the thermal model is
comprised of thermal resistances and capacitances determined by
the configurations and the dimensions of motor. Finally, an oilcooling
system is covered with the concepts of thermal
conductivity, density, specific heat at constant pressure, dynamic
viscosity, and flow rate.