抄録
This paper presents the fundamental study on the characteristics of motor using equivalent circuits representative of the magnetic properties of core materials, which can be used in the case of magnetic saturation or PWM. The iron losses were separated into those of field excitation and armature current one. The copper losses were also separated into parts related to output power, motor structural factors or magnetic saturation. The effect of manufacturing stress can be estimated and the punched core with thicker steel sheet and narrower width of tooth or yoke may have almost twice larger iron losses than steel sheets without manufacturing stress.
