New Pulse Width Modulation Technique to Reduce Losses for Three-Phase Photovoltaic Inverters

Table 5

Calculation results of the switching losses when different modulation techniques are used.

Modulation type	Central PWM	60° PWM	120BCM
RG4PH40UDPbF-IGBT
Turn-on losses [W]	25.83	12.96	2.88
Turn-off losses [W]	33.01	17.05	3.96
Total losses [W]	58.84	30.01	6.84
Total inverter losses [W]	353.07	180.06	41.04
C3M0065090D-SiC
Turn-on losses [W]	3.59	1.80	0.40
Turn-off losses [W]	1.73	0.89	0.21
Total losses [W]	5.32	2.69	0.61
Total inverter losses [W]	31.92	16.14	3.66

  Sum of all switching losses by all six switches.