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I performed dynamic simulation on IEEE 39 bus test system and applied unbalanced branch fault. When doing the simulation with sav file and dyr file, output bar prompt non-convergence, some information as follows:

*** Circuit "1" from 4 [LOAD4       345.00] to 14 [BUS14       345.00] ***
             Charging set to    0.0000
            Impedance set to ( 0.18656,  1.5048)
  From bus line shunt set to (  47.079, -765.61)
    To bus line shunt set to (  5.2309, -85.006)

 Channel output file is "D:\IEEE39_dyr_test\IEEE39_jconto_file\test1.out"

 39 diagonal and 67 off-diagonal elements

 Network not converged at TIME = 1.0

 Network not converged at TIME = 1.0083

 Network not converged at TIME = 1.0167

 Network not converged at TIME = 1.025

 Network not converged at TIME = 1.0333

 Network not converged at TIME = 1.0417

 Network not converged at TIME = 1.05

 Network not converged at TIME = 1.0583

 Network not converged at TIME = 1.0667

 Network not converged at TIME = 1.075

but at this time, the out file can be opened (Angle curve has not spread, but leveled off after fluctuations, it seems everything is normal).

I tried to modify the parameters of dyr file according to the PDF file that someone sent me. The pdf file contains generator model, excitation model and governor model parameters, but governor model are BPAGG, which does not exist in PSSE. So I only changed generator and the excitation system parameters .

By doing the dynamic simulation with modified dyr file in the same way, the new out file will cause the PSSE GUI to crash, so I used dyntools in python3.4 environment to read the out file, and got an error message:

Traceback (most recent call last):
  File "D:/IEEE39_dyr_test/IEEE39_test_file/out_to_plot.py", line 21, in <module>
    outfile = dyntools.CHNF('./Sample_outfile/tt001.out')
  File ".\dyntools.py", line 1027, in __init__
  File ".\dyntools.py", line 789, in _scale
  File ".\dyntools.py", line 662, in _power10th
  File ".\dyntools.py", line 640, in _nint
OverflowError: cannot convert float infinity to integer

Obviously there is something wrong with the out file, I doubt it is caused by the dyr file. If so, why not prompt the error message in the output bar during the simulation?

I performed dynamic simulation on IEEE 39 bus test system and applied unbalanced branch fault. When doing the simulation with sav file and dyr file, output bar prompt non-convergence, some information as follows:

*** Circuit "1" from 4 [LOAD4       345.00] to 14 [BUS14       345.00] ***
             Charging set to    0.0000
            Impedance set to ( 0.18656,  1.5048)
  From bus line shunt set to (  47.079, -765.61)
    To bus line shunt set to (  5.2309, -85.006)

 Channel output file is "D:\IEEE39_dyr_test\IEEE39_jconto_file\test1.out"

 39 diagonal and 67 off-diagonal elements

 Network not converged at TIME = 1.0

 Network not converged at TIME = 1.0083

 Network not converged at TIME = 1.0167

 Network not converged at TIME = 1.025

 Network not converged at TIME = 1.0333

 Network not converged at TIME = 1.0417

 Network not converged at TIME = 1.05

 Network not converged at TIME = 1.0583

 Network not converged at TIME = 1.0667

 Network not converged at TIME = 1.075

but at this time, the out file can be opened (Angle curve has not spread, but leveled off after fluctuations, it seems everything is normal).

I tried to modify the parameters of dyr file according to the PDF file that someone sent me. The pdf file contains generator model, excitation model and governor model parameters, but governor model are BPAGG, which does not exist in PSSE. So I only changed generator and the excitation system parameters .

By doing the dynamic simulation with modified dyr file in the same way, the new out file will cause the PSSE GUI to crash, so I used dyntools in python3.4 environment to read the out file, and got an error message:

Traceback (most recent call last):
  File "D:/IEEE39_dyr_test/IEEE39_test_file/out_to_plot.py", line 21, in <module>
    outfile = dyntools.CHNF('./Sample_outfile/tt001.out')
  File ".\dyntools.py", line 1027, in __init__
  File ".\dyntools.py", line 789, in _scale
  File ".\dyntools.py", line 662, in _power10th
  File ".\dyntools.py", line 640, in _nint
OverflowError: cannot convert float infinity to integer

Obviously there is something wrong with the out file, I doubt it is caused by the dyr file. If so, why not prompt the error message in the output bar during the simulation?