Where isa is the output desired current and equals to ipa,1 .
Equation (6) shows that the power range of voltage source
inverter is effectively less than the power range of current
source inverter. So it doesn’t impose much expense to the
system [5].
Another case is based on the motor compensated current so
that the motor current becomes sinusoidal with amplitude of
dc link current. Therefore, RMS value of the motor current is