Thanks. From the simulation I got the inverter input current from an ammeter at the DC voltage side .(Figure Attached). The inverter input current value is 24.56 A and the DC voltage is 48 Volt. Isn't inverter input power here is  inverter input current(24.56 A)*DC voltage(48 Volt)? Also is it wrong or not valid, the motor input calculation equation in my 1st post Pin_motor = Average (Ia*Va+Ib*Vb+Ic*Vc)? Sorry for bothering :(