Losses is an important aspect of power electronics since lower losses gives higher effciency.
Since the two-level and multilevel inverters can operate at dierent switching frequencies
and with dierent balancing control schemes they will not have the same amount of
power losses. To be able to investigate the switching losses in an inverter a model for
losses is needed. The switching power loss Psw during one second in a switch is dened
by the formula