jmaurio's profile - activity

Thank you! Unfortunately, this flag (DLTCHG) appears in many place in the code in different conditional statements. Can you point me to any reference describing DLTCHG? I can't find any mention of it in the POM.

I received user defined DLLs that were compiled for PSSE 33. I am running PSSE 34 and it appears that I can't use this precompiled files (see the post on this forum "library-not-found-error"). I tried compiling the source code and I get the error below:

usrmdl_all.FOR(4947): error #6385: The highest data type rank permitted is INTEGER(KIND=8). [DLTCHG] IF(MIDTRM.AND..NOT.DLTCHG) RETURN ----------------------------^

I know MIDTRM is a PSSE flag but I cannot find any reference to DLTCHG in the PSSE 34 POM. Can anyone assist me with this?

Is there anyway for PSSE 34 to use DLLs compiled for PSSE 33?

Any help at all is greatly appreciated!

• Joe

Hello. I am trying to simulate multiple line outages of a power system using psspy. There are cases when the system will form two islands. When this happens, one of the islands will not have a swing bus and I, of course, get the error that there are buses in an island without a swing bus. I have tried to change one of the buses in the non-swing bus island to be of type 3 after the outages using

ierr = psspy.busdata4(30,1,intgar1 = 1, intgar2 = 1)

but I am getting the error

FATAL: Bus 30 [BUS 30 33.000] does not belong to a substation (000568)

I feel like there must be a standard way to handle this type of situation where multiple islands form. Can someone please assist me?

Thank you!