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Help with User written model for FACTS devices

asked 2015-11-02 20:26:07 -0600

gschavan gravatar image

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.

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answered 2015-11-19 19:43:32 -0600

Nihal Mohan gravatar image

Are you going to Model the SSSC as a generator in steady state? I am guessing that DEMOEX stands for demo excited, so EFD would be the quantity to change. If you write a generator Model, you would calculate the current injection ( Norton equivalent). For compiling , You would need particular version of Intel FORTRAN compiler, depending upon the psse version you are using. You can find that on Seimens website. I don't believe there is any restrict on on FORTRAN file name.

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Hi Nihal Mohan, I'm writing USMDL for a simple generator, but I have met an issue with the injected current. When I inject current according to the formula CURNT(IB) = CURNT(IB)+ISORCE+cplxINorton, the output MW of Gen is double. Do you have a simple example for USMDL of gen?

chautran gravatar imagechautran ( 2023-06-13 23:25:59 -0600 )edit

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Asked: 2015-11-02 20:26:07 -0600

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Last updated: Nov 19 '15