Temperature Effects on the Magnetic Properties of Silicon-Steel Sheets Using Standardized Toroidal Frame

Table 3

Iron losses for a sinusoidal waveform and unipolar PWM (with = 50 Hz) obtained using the new toroidal frame.

Flux density	Unipolar PWM; = 0.3, = 20	Unipolar PWM; = 0.6, = 20	Unipolar PWM; = 0.9, = 20	Sinusoidal waveform; 50 Hz
1.0 T	2.66 W/kg	2.21 W/kg	1.94 W/kg	1.71 W/kg
1.4 T	5.46 W/kg	4.31 W/kg	3.80 W/kg	3.25 W/kg