thanks @itssmoked but why do we need to store the DC power when our input is continuous online, we can keep rectifying and then keep inverting?
Thnaks @electricpete yes I'm using a PWM inverter. doesn't the DC link capacitor supply the required reactive power in VFD?
can any1 tell me what is the use of Capacitor in DC link of the VFD? How come a capacitor works on DC? also how does a VFD controlled motor gets its required reactive power as it is being supplied directly from an inverter which isn't a source of reactive power?