User defined model of line relay

asked 2022-12-06 00:49:55 -0600

cresg
13 ●18 ●19 ●23

Hi,

I am writing a line relay model in Fortran with SUBROUTINE modelname (KM,RS,ISLOT). My questions are:

I see that 'KM' is the internal PSS®E double entry line array index for the line at which the model is being called. How can I make use of 'KM' in the model?
How can I monitor the line current for the line at which the model is being called? The API CALL BRNMSC seems to do the job but it needs to be supplied with 'IBUS, JBUS AND ID'. Since I don't know for which line the model will be called, I cannot use BRNMSC API.

Thanks.

answered 2022-12-06 03:28:47 -0600

perolofl

3322 ●1 ●8 ●18

Use KM to get the line information:

CALL GETFTC(KM,II,JJ,ID)

returns the bus sequence numbers II and JJ and the line ID. The external bus numbers are:

IBUS = NUMBUS(II)
JBUS = NUMBUS(JJ)

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Thank you so much. It worked like a charm! I couldn't find 'GETFTC' in any document (POM, PAGV2, and API). Is there any other document with information on such subroutines?

cresg ( 2022-12-06 06:24:09 -0600 )edit

No, PTI doesn't publish such information.

perolofl ( 2022-12-06 07:09:15 -0600 )edit

Thank you.

cresg ( 2022-12-06 11:02:34 -0600 )edit

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User defined model of line relay

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