ORGANIZATION :
JOURNAL : 한국자동차공학회
YEAR : 2018.6
VOL :
PAGE :
This paper presents characteristic analysis of surface permanent magnet synchronous motor(SPMSM) considering mechanical loss
according to rotor axial load by oil pressure in brake system. If rotor is forced in axial direction, mechanical loss increases.
Mechanical loss is one of major components which affect on efficiency. To consider mechanical loss, no load loss is measured at axial load condition.
Mechanical loss is calculated by subtracting core loss from no load loss. Mechanical loss is increased as rotor axis is forced and rotates more quickly.
Motor characteristic comparison between model with axial load and model without axial load is done. In case of model with axial load,
motor performance decreases compared to model without axial load. In conclusion, Mechanical loss by axial load reduces torque and efficiency in high speed region.