Ques:

The DC supply for the voltage source inverter of the VFD is derived using six pulse diode converter.

Supply voltage is 600V, 3phase, 50Hz. Xd’’=12.5 pu ,X/R ratio as 20. Model the load seen by the DC link capacitor as pure resistor. Take rated load current as 900A.

(i) Design DC link capacitor to get DC voltage with 10% ripple at rated load. (Hint : use simplified formula).

(ii) Simulate the above system. (Assume suitably any missing data)

(iii) Draw the circuit diagram.

P.S: PLEASE HELP ME WITH CLUES TO SOLVE THE PROBLEM