Hi Anup
PSSE provides a special fault current source format for wind and solar inverter sources. It is called
"Non-Conventional Source Fault Contribution". You can see it in section 2.12 of the Data Formats Reference Manual.
I understand that it has to be configured in the .seq file. You can save your case as .seq, edit it to add this data, and re-load the seq.
By the way, I assume you are talking about a type IV wind turbine, rather than type VI. Unless someone has invented another two classes of wind turbine while I was not looking. :-)
Dave