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Hello to all!

i am having a hard time using the vre model REGCAU1 and REECAU1, my generator limits in the steady state/static is already within limits yet there are errors encountered in the dynamics initialization.

The REGCAU1 REECAU1 models i patterned the values from what i saw here in the forum, from the files of Sir Jconto. (thank sir for sharing) and i have errors encounter saying.

REECAU1 STATE K+3 errors

the limits i used in the model i referenced it to the PMAX of the generator to get the PU. this is for the J+13, J+14, J+25, J+26

i also tried referencing it to machine MBASE yet still there are issues on K+3

i am requesting for your help since i dont have any move to do

Thank you to all and God bless!

REECAU1 J+13 QMax (pu), limit for reactive power regulator J+14 QMin (pu) limit for reactive power regulator

J+25 PMAX (pu), Max. power limit J+26 PMIN (pu), Min. power limit

2057 'USRMDL' 1 'REGCAU1' 101 1 1 14 3 4 1 0.02 10 0.9 0.5 1.22 1.2 0.8 0.4 -1.3 0.02 0.7 999 -999 0.7/

2057 'USRMDL' 1 'REECAU1' 102 0 6 45 6 9 0 0 1 1 1 0 -99 99 0 -0.05 0.05 0 1.05 -1.05 0 0.15 0 0 0.05 0.214285714285714 -0.357142857142857 1.1 0.9 0 0.1 0 120 0 0.02 99 -99 1 0 1.7 0.04 0.29 1.25 1.33 0 0 0 0 0 0 1.15 1.1 1.24 2 1.24 0 0/

mbase- 42 pgen - 10mw pmax - 42mw pmin - 0mw qmax- 9mvar qmin- -15mvar
xsource- 0.6

thank you! ill look into that. quick question but for this, REECAU J+13 QMax (pu), limit for reactive power regulator --> is the Qmax pu in terms of MachBase or System Base?

hi i am using REGCAU, REECAU, REPCAU and i've been getting these errors but i cant derive where it come from even looked at the MODELS document of PSSE

ERROR 1 REPCAU1 AT BUS 2047 MACHINE '1 ': Q COMMAND 0.2545 EXCEEDS MAXIMUM 0.2545

it says in MODELS document Qpu. i understand it is QMax QMin, but is it Qmax/Mbase? to get Qpu

but sometimes if i follow the above formula, there will be error again, making it seems the formula is Qmax / 10

so im thinking what is the real formula?

ERROR 2 REECAU1 AT BUS 2047 MACHINE '1 ': REACTIVE CURRENT 0.3630 EXCEEDS MAXIMUM 0.3365

im having hard time figuring out where did the .3365 come from? i even change the Qgen and Qmax but no change happen. is there a formula for that? or any related that i can do to change/correct that?

Also the REACTIVE CURRENT .3630 is that the Qgen/Mbase?

thank you so much in advance for your answers. God Bless! i apologize if these questions seems basic

Hi sir i am using version psse 33.4. if not a burden to you, can i send you my .sav, .dyr. .py to test in your own pssse version to test? thank you in advance sir

yes sir i've checked it also. no error was found during initialization and after the run, the load is still intact no shedding. but if i change i to LDSHBL, that same bus will drop its load. in UVUF, does need to satisfy the condition for UV and UF before dropping its load or whichever comes first?

Hello everyone,

i am wondering why no load shedding is happening even though i inputted all necessary parameters. here is my code

40003 'USRLOD' * 'UVUFBLU1' 13 1 1 20 0 7 18 906 0.7 0.2 0.025 0.6 0.1 0.025 0.5 0.05 0.05 0.05 59 0 .5 0 0 0 0 0 0 0.05/

and this happens during dynamic simulation

UVUFBLU1 AT BUS 40003 LOAD 1 STAGE 1 PICKUP TIMER STARTED AT TIME = 4.550 FREQ = 58.997

UVUFBLU1 AT BUS 40003 LOAD 1 STAGE 1 BREAKER TIMER STARTED AT TIME = 4.550

UVUFBLU1 AT BUS 40003 LOAD 1 STAGE 1 BREAKER TIMER TIMED OUT AT TIME = 4.600 50.00 PERCENT OF INITIAL LOAD SHED NO LOAD SHED FOR THIS STAGE 50.00%

----it reached my trigger frequency which is 59hz but no load shedding even activated

thank you for the answers :)

Hi sirs. I tried to use this code but I get this kind of error. for isload, p, q, bus, _id in data: ValueError: need more than 1 value to unpack. any help is very much appreciated. thank you! i tried to search to correct this issue but i still can't find a way.