Just use psspy.pssehalt_2() at the end of your script. It is important if you are using hourly dongles and if you don't want PSSE drains all your hours left on the counter. If you have a perpetual licence it is up to you wether to add it our now but it is a good practice to halt PSSE after finishing your simulation. Otherwise, you may face with memory management issue in case of long simulations.

p.u Generator Dynamic Impedance, ZSORCE p.u. impedance XTRAN = RT, XT on machine MVA base p.u. off-nominal turns ratio (GENTAP) entered in the machine impedance

You can use dyntools to extract data from .outx/out file to excel and do all your data manipulation in Python.

******** Output File Handling *************

outfile = path + r'\output_results' xlsoutput= outfile+'.xls' outfile = outfile+'.outx' xlsresult= dyntools.CHNF(outfile) dyntools.CHNF.xlsout(xlsresult, channels=[], show=False, xlsfile=xlsoutput, outfile=outfile)

For wind machine, you can use machine PELEC and QELEC.

e.g. 302 is the bus the wind machine is connected to. psspy.machinearraychannel([-1,2,302],r"""1""",r"""Inv1P""") psspy.machinearraychannel([-1,3,302],r"""1""",r"""Inv1Q""")

For PPC or point of connection, you should add a dummy branch with zero impedance and measure the follow of p and q in the branch.

e.g. 102 and 102 is starting and ending of dummy branch psspy.branchpandqchannel([-1,-1,-1,101,102],r"""1""",[r"""POCP""",r"""POCQ"""])

Indeed you are right, I'm testing an inverter model and during the fault, it is non-convergence condition. there is a restricted guideline and I can't change the simulation parameter setting. Both DELT and filter must be 0.001 and 0.008. I will check whether if the model filter can fix it.

Hi Guys,

Basically this is can be seen for deep faults in PSSE that voltage at the bus that fault was applied will spike for one-time step. I understand this is only an artefact and occurs in only one time step but I'm wondering that if there is a pro tip to avoid this? or to at least minimise this spike.

Much appreciated.