Help with User written model for FACTS devices

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Hello All,

I am required to write a user written dynamic model for the FACTS device steady state model. The dynamic model would simulate dynamics of the Static Series Synchronous Compensator (SSSC).

I have gone through chapters 18 and 21 of the Program Operating manual, and I have a couple of questions:

1. What should I name the Fortran file? Are there any restrictions on that?

2. I looked at the DEMOEX model routine and understood it. But, in that model, they set EFD(I) to a particular value which is sent to the steady state model. I am confused, how do they know which variables in a steady state model can be manipulated and what are their names are. Essentially how would I find the interface points between the PSS/E static model and my user written model.

3. Finally, what other files do I need for compile other than the fortran .f file I have written.