抄録
This paper examines iron losses prediction approach for switched reluctance motor. It is well known that the flux density distribution in core of SRM is intermittent triangular rather than continuous sinusoidal waveform different from conventional AC machines. The approach examined in this paper obtains the flux density distribution in the segmented core by employing 2D-FEA. Then, harmonic analysis based on Discrete Fourier Transform for the obtained flux density distribution provides flux density amplitudes for respective frequencies. Finally, the sum of iron loss in each segmented core can be calculated from Steinmetz equation as the total iron loss of machine. The comparative studies using a 4-phase switched reluctance servomotor shows that the calculated iron loss is good agreement with the measured one in spite of operating points.
