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2022-11-23 01:34:41 -0600 commented answer FLOW1 function output not matching with Load Flow Solution

Hello, You can solve the network before initialisation and make sure the convergence tolerance are met and also Q at branch is within the limits of PPC specified limits.

2022-11-22 12:09:08 -0600 answered a question How to calculate limits for governor models

There is no such calculation available for calculating those data. In case of unavailability of data you can use the typical parameters based on the same machine rating

2022-11-22 12:05:14 -0600 answered a question how to convert v33 idv file to v34

Hi Gary,

Ideally v33 idv file should work with v34 as well, You may just need to do some minor changes in the idv to file to import the PSSE files.

2022-11-22 11:53:46 -0600 answered a question FLOW1 function output not matching with Load Flow Solution

Hello, are you initializing with some setpoint or VAR reads the Q directly. If you are initializing with Q value user defined, then make sure the Q is selected from the same end. I would suggest try adding a line with zero impedance and try initializing it.

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2022-11-16 16:33:49 -0600 commented answer contour plot from python

psspy.enablediagcontour(1,1,1,4,1, 100., 4.0, 1.0, 1.25, 0.75) psspy.changediagcontour(1,1,1,4,1, 100., 4.0, 1.0, 1.25, 0.75) psspy.printdiagfile(r"""Foxit PDF Editor Printer""",1,1) Please replace " Foxit PDF Editor Printer" with your default pdf veiwer to save it

2022-11-16 14:45:47 -0600 answered a question virtual inertia in renewable energy

I think the generic models available in the PSSE dosen't have Virtual Inertia included in their dynamic model. You can try with some UDM models availbale for wind turbine that has this function modelled.

2022-11-16 14:41:44 -0600 answered a question Difference between line G and line B

The B represents the susceptance of the line which is included as a part of equivalent R,X,B line parameters. The G+jB at both the ends are for shunt elements connected to line, like you can use it to model line reactor that will be switched along with the line

2022-11-16 14:32:25 -0600 answered a question contour plot from python

Hello, This command will enable the contour plot in the SLD and you can also change the contour setting using the python code. Once it's done you can print the SLD page to get the contour included in the pdf file.

2022-11-16 14:26:41 -0600 answered a question Calculating centre of inertia frequency, scaling?

From the dyanmic data of the machienes avalilable in you network, you can just multiply the Inertia constant with the MVA rating of the machine. Do the summation of the all the generators to get total inertia of the network,

2022-11-16 14:17:18 -0600 answered a question Having issues with initializing case in 33.4 version.

Check with PSSE release notes. If there is no change in governor model then try checking your simulation/parameter setting and make sure those are same in both the versions.

2022-11-16 14:09:32 -0600 answered a question Simulation Crash at Fault Creation

If the tests are with SMIB model, then you can try using the Playback model to bring the voltage down

2022-11-16 14:08:30 -0600 commented answer Simulation Crash at Fault Creation

This is just to see if it crashes just because of the fault

2021-02-04 07:09:51 -0600 answered a question PSS plot Left Axis

Goto Plot Book and deselect Multiple Y axis. This shows all the channels in same axis

2021-01-22 08:01:41 -0600 commented answer Conversion of uexc.flx flecs code to uexc.for fortran code

Is it possible to convert this .flx file to .f90 fortran code ?

2021-01-15 08:42:07 -0600 commented answer How to get ASCC result in excel file

The error got fixed, however I couldn't get any excel output file. And at the output bar it shows that "ASCC results not available." Also can you please help how to export IEC Fault calculation results to Excel?

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2021-01-14 12:46:51 -0600 commented answer How to get ASCC result in excel file

Can you please help to fix this. Or can you please help with running procedure for this script to get the results. Thanks

2021-01-14 12:45:58 -0600 commented answer How to get ASCC result in excel file

While am running the script scexcel.py am getting the below error File "C:\Program Files (x86)\PTI\PSSE33\EXAMPLE\scexcel.py", line 88, in main if os.environ['PYTHONCODE']: File "C:\Python27\lib\os.py", line 425, in __getitem__ return self.data[key.upper()] KeyError: 'PYTHONCODE'

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2020-11-23 05:52:14 -0600 answered a question Getting output without using .out file

You can try taking the out files by setting- print, write, plot time step as 0

2020-11-21 06:26:21 -0600 answered a question 4 winding transformer

Practically, if you are regulating the voltage at one of the low voltage winding, the tap at HV get adjusted and the other Low voltage winding voltage will also get adjusted automatically.

2020-11-05 02:28:35 -0600 answered a question Short Circuit Result in Absolute Values

You can get the actual short circuit values by modifying as below Misc-> program settings-> change the short circuit output from pu values to physical . The values can also be displayed in polar form by changing short circuit coordinates from Rectangular to Polar

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2020-10-26 02:44:22 -0600 commented answer How to add dynamic data to an existing dynamic data in PSSE through Python?

Please see his question. He is trying to add only the inverter parameters from the new WHSF.dyr to the existing NEM.dyr file, And he might be facing this issue because of invalid python command. so this should probably works. :)

2020-10-26 00:52:08 -0600 answered a question How to add dynamic data to an existing dynamic data in PSSE through Python?

Hello,

you can modify the line as shown below to add the new dyr file to the existing dyr file

psspy.dyre_add([1,1,1,1],"WHSF.dyr","","","")

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2020-10-22 09:18:12 -0600 answered a question ppspy and redirect import fail

I have also faced the same issue with the latest version of PSSE v34.8

2020-10-21 23:24:18 -0600 answered a question Is it possible to make an "interface" channel in PSSE for dynamics studies?

You can add Functions after getting the out file to a plot the summation of flow in branches.

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2020-10-16 07:49:38 -0600 asked a question How to find the optimal location and size of the new generation that can be added to existing PSSE network ?

Hi everyone! I want to find find the optimal location and size of the new generation (Renewables/ Large power plants) that can be added to existing complete PSSE network. This has to analyzed in both the stability and technical perspective. Is there a python API to find the buses based on its sensitivity analysis or branches based on its thermal stress.? Or is there any specific planning study or procedure has to be followed ? Can someone can help me with this.

Thanks in Advance

2020-10-16 05:00:52 -0600 asked a question How to find the optimal location and size of the new generation that can be added to existing PSSE network ?

Hi everyone! I want to find find the optimal location and size of the new generation (Renewables/ Large power plants) that can be added to existing complete PSSE network. This has to analyzed in both the stability and technical perspective. Is there a python API to find the buses based on its sensitivity analysis or branches based on its thermal stress.? Or is there any specific planning study or procedure has to be followed ? If someone can answer it will be a big help for me. Thanks in Advance

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2020-10-12 05:11:03 -0600 answered a question Import PowerFactory model into PSS/E 34

No, only way is to export the raw and seq file from the Powerfactory and you have to open it in PSSE

2020-10-11 03:03:15 -0600 commented answer machine modeling in steady state for solar inverter

Yes, exactly. You can use the same parameters for PV inverter in the steady state model.

2020-10-10 05:39:21 -0600 answered a question machine modeling in steady state for solar inverter

Based the fault current contribution from Inverter (typically 1.1 times the inverter rated current), the Impedance can be calculated and parameters like X source , Sub transient, Transient, Synchronous reactance shall be kept Identical in this case.

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2020-10-07 20:40:11 -0600 commented answer Conversion of uexc.flx flecs code to uexc.for fortran code

yes it worked :) great thanks

2020-10-07 14:00:17 -0600 marked best answer Conversion of uexc.flx flecs code to uexc.for fortran code

Is there any tool or script available for conversion of flecs code to fortran code. ?

In the google drive link that I got from this site, I found that this can be done using * FLECS32 ( LIBmaker.bat)*

Can anyone help with how to do this translation of code.

Thanks in advance