"Connection Tables Full" when running dyre for dynamic simulation

asked 2013-11-14 17:41:54 -0500

wassup_doc
90 ●11 ●15 ●22

updated 2013-11-14 20:02:10 -0500

Hello,

I am using psspy.dyre_new() to load the generator, exciter, governor, and relay models into PSS/E. I am getting a warning message in the command line output as follows:

Generator models use:
CONS        1-   140
STATES      1-    60

Excitation System models use:
CONS      141-   280
STATES     61-   100
VARS        1-    10

Turbine Governor models use:
CONS      281-   350
STATES    101-   130
VARS       11-    20

LINE RELAY MODEL Connection tables full--use pack models function

SUMMARY OF MODELS READ:

GENS:  GENROU
      10

EXSYS: IEEET1
      10

GOVS:  IEEEG2
      10

RELAY: TIOCR1
       2

NEXT AVAILABLE ADDRESSES ARE:
CON  STATE    VAR   ICON
365    131     24     16

Only PSS/E supplied models in case. Compilation is not required

LINE RELAY MODEL TABLES ALREADY PACKED:
Connections from Branches to Models:  1(Old)    1(New)    1(Maximum)
Pointers from Models to Data:         1(Old)    1(New)    2(Maximum)

Here is what I do not understand:

1. Under "models use" it does not list any of the relay models, but in "models read" it lists both relays.
2. The output suggests to fix the problem with the "Pack models function"... I found and used psspy.rlmod_pack() but it does not seem to do anything to fix the issue.
3. If I use 1 relay model I do not get this message vs. >1 relay model, the functionality of all the relays go away (even the first one that did work).
4. Psse lists the next available con, state, var, icon addresses, but apparently they cannot be used?

Eventually I would like to load about 50 relay models to the dynamic working case. I am modeling the old case 39 New England, and I feel like PSS/E should easily be able to do this. (Though I am new to PSS/E).

If anyone has any insight into what I am doing wrong that would be appreciated. BTW - I am using the PSSE33 Free University version. I am starting to think that I have simply found a limitation of the free version (the number of dynamic models you can initialize)... but then again they claim the only limit to the university version is initialization to <50 buses.....

Thanks.