Python for PSSE help forum - Latest question feedhttp://psspy.org/psse-help-forum/questions/A community for Power Systems Engineers to ask and answer questions about Pythonenwhit loves you. Wed, 25 Apr 2018 12:12:32 -0500Dynamic Simulation Flowhttp://psspy.org/psse-help-forum/question/4379/dynamic-simulation-flow/Hi,
I am new to PSSE and I am unsure what the error message below means.
2455 diagonal and 3512 off-diagonal elements
FLOW1 BUS 0 NOT FOUND--CIRCUIT 0 FROM 0 TO 0
NO SMF INPUT SIGNAL FOR CHSVCT AT BUS 16020 [HIGH LV6 15.000]
FLOW1 BUS 0 NOT FOUND--CIRCUIT 0 FROM 0 TO 0
NO SMF INPUT SIGNAL FOR CHSVCT AT BUS 17054 [ARCENC2 15.000]
MRS2016Wed, 25 Apr 2018 12:12:32 -0500http://psspy.org/psse-help-forum/question/4379/PSSE V32, PQ Mismatch Between Pelec/Qelec and Flow(Q+P)http://psspy.org/psse-help-forum/question/3679/psse-v32-pq-mismatch-between-pelecqelec-and-flowqp/Hey guys,
I am using PSSE V32 to run a dynamic fault study however there seems to be a significant mismatch between Pelec/Qelec and Flow(Q+P) outputs. For example in this case there is an inverter at bus 903 and after the fault the Pelec/Qelec go back to values that are expected, however the Flow(Q+P) to the bus it is connected to 901 are quite different.
Any help would be appreciated,
Thanks
![image description](https://i.imgur.com/JsLED6T.png)haveityourwaFri, 29 Sep 2017 01:09:41 -0500http://psspy.org/psse-help-forum/question/3679/on a converged base case i wan to change load by 1 MW on each node and comapre change in line flow in excel outputhttp://psspy.org/psse-help-forum/question/3087/on-a-converged-base-case-i-wan-to-change-load-by-1-mw-on-each-node-and-comapre-change-in-line-flow-in-excel-output/ I have one converged base case and it is running fine through Python outside PSSE. Now i wan to change load on each bus by 1 MW and get load flow done again and save the result of line flow in excel. Line flow for base case are exported to excel .vijayWed, 08 Mar 2017 05:54:18 -0600http://psspy.org/psse-help-forum/question/3087/AREA/ZONE/OWNER based Load flow Reporthttp://psspy.org/psse-help-forum/question/2392/areazoneowner-based-load-flow-report/Dear all,
In PSS/E 33.4 Area/Zone/Owner based load flow report generated with single digit precision.
Is it possible to generate same report with three or four precision digit in PSS/E or with PSS/E API?
Thanks in advance.JervisTue, 04 Aug 2015 01:34:34 -0500http://psspy.org/psse-help-forum/question/2392/MW & Mvar flow in Python to Excelhttp://psspy.org/psse-help-forum/question/2366/mw-mvar-flow-in-python-to-excel/Hi I am new to python, and I am really enjoying my time spent on understanding its application. What is the python code for obtaining all the branch flows (MW, Mvar, loading, MVA etc) for all my circuits on my network and then exporting it to excel? PSSE_ABCDTue, 30 Jun 2015 04:44:36 -0500http://psspy.org/psse-help-forum/question/2366/while Dynamic simulation, Generators are converted as Voltage source with impedance...http://psspy.org/psse-help-forum/question/2234/while-dynamic-simulation-generators-are-converted-as-voltage-source-with-impedance/Dear All,
Good Afternoon..
While running Dynamic simulation, Genrators are Load are converted as constant Voltage source with Impedance and constant MVA load respectively...
Now, when trying to run simple Load flow and incorporate changes in values of Generators, (after the dynamic study)...
PSSE showing the msg that "Generators are converted" and not entertaining to perform Load flow further...
How to revert/normalize Generators..???
Any one please, who may guide.>???
I am using 50 bus University version of PSSE 33..
Regards,\
Syed Mujtaba HassanSyed Mujtaba HassanWed, 25 Feb 2015 10:17:02 -0600http://psspy.org/psse-help-forum/question/2234/System instabilityhttp://psspy.org/psse-help-forum/question/2192/system-instability/When I start dynamic sumulation, after 0.2 sec my generator's angle start to change very sharply from 35 degrees to 1000 in 0.01 sec. But I'm not giving system any disturbances... Is it a problem of system initial instability? I mean steady state instability.
Who knows?
P.S.Power flow solved via Full newton Raphson
P.S.S. I used CONL, CONG, ORDR, FACT, TYSL.Winnie_the_poohTue, 10 Feb 2015 03:18:23 -0600http://psspy.org/psse-help-forum/question/2192/psspy.AFLOWCPLXhttp://psspy.org/psse-help-forum/question/836/psspyaflowcplx/I have found that the function
"ierr, xarray = psspy.aflowcplx(-1,1,1,1, 'PQLOSS')"
returns an array of power losses, but with each branch loss repeated twice. Is it possible to obtain the losses of each branch only once with this function?
HectorWed, 10 Apr 2013 08:21:39 -0500http://psspy.org/psse-help-forum/question/836/