A. Boglietti et al., EFFECTS OF DIFFERENT MODULATION INDEX ON THE IRON LOSSES IN SOFT-MAGNETIC MATERIALS SUPPLIED BY PWM INVERTER, IEEE transactions on magnetics, 29(6), 1993, pp. 3234-3236
The increase of iron losses in soft magnetic materials due to the modu
lation depth in pulse width modulation (PWM) inverters are analyzed. I
n particular, the specific loss variations with different modulation i
ndexes are measured both in wound cores realized with high quality gra
in oriented magnetic material and in induction motors.