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Supervisory function of the excitation system

asked 2025-04-24 01:35:27 -0500

pvinkovic gravatar image

After simulating the disturbance, the reactive power response settles at a new value. However, in reality, after the transient phenomenon, the supervisory function restores the reactive power production to the value it had before the disturbance. How can this functionality be modeled?

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answered 2025-04-24 03:56:05 -0500

perolofl gravatar image

updated 2025-05-02 05:42:52 -0500

Model PFQTYP2U can be used in rev 35 to model P.F. or Mvar control.

EDIT:

Block diagram is missing in rev 35 manual, here it is:

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Thank you! So, I added that model and assumed the parameters because I coundn't find the expected ranges. I can't find the model in the "Dynamic data" tab. This is what I wrote in .dyr file: 91003, 'USRMDL', '1 ', 'PFQTYP2U', 27, 0, 1, 8, 3, 8, 0, 0.5, 10, 1, 15, -15, 0.1, 0.9, 1.1/

pvinkovic gravatar imagepvinkovic ( 2025-04-24 05:15:33 -0500 )edit

Scroll to the last column in the Dynamics data tab.

perolofl gravatar imageperolofl ( 2025-04-24 06:47:32 -0500 )edit

Thank you perolofl! And what to do if we want to control the voltage depending on the slope?

pvinkovic gravatar imagepvinkovic ( 2025-04-30 01:51:10 -0500 )edit

I don't understand, do you want voltage control only, or transient voltage control with a supervisory control slowly restoring the Mvar output?

perolofl gravatar imageperolofl ( 2025-04-30 07:49:10 -0500 )edit

This might be a question for another topic. Thank you for the answers. The PFQTYP2U model is working as expected. What if I want to implement voltage control functionality for a synchronous generating unit based on a slope, for example 4%, similar to how SVC controls voltage? Is this possible?

pvinkovic gravatar imagepvinkovic ( 2025-05-02 02:25:02 -0500 )edit

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Asked: 2025-04-24 01:35:27 -0500

Seen: 94 times

Last updated: May 02