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Initial Conditions for Ef and If

Dear members, I need to match the measurements to verify the exciter. How do you set the initial conditions like Ef and IF? Any reference to calculate the machine initial conditions?

kuchow's avatar
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kuchow
asked 2025-08-26 20:39:05 -0500
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Dear Kuchow, In dynamic simulations, the exciter voltage and current is usually calculated based on the load flow conditions and can be accessed by the array table EFD(I), where I is the machine index. I hope this helps, BR

cBal's avatar
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cBal
answered 2025-08-27 06:11:59 -0500
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1- Initialise simulation and check the EFD for the generator (printed in progress window).

2- Reload the case and update Vsched or change Qmax & Qmin to enforce another Qgen.

3- Convert and initialise again.

4 - Repeat 2 & 3 until Efd is matching the measurement.

perolofl's avatar
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perolofl
answered 2025-08-27 08:30:52 -0500
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