Bob's profile - activity

I now want to do simulations from Python not PSSE, but I can 't figure out how to do it. For example,trip Generator1 the out file name 1.out,trip Generator2, the out filee name 2.out.and so on. Thanks a lot! The commands are following:

i=1
while i<=3:
    psspy.case('savcnv.sav')
    psspy.rstr('savnw.snp')
    psspy.strt(outfile='i.out')
    psspy.run(tpause=1.0)
    psspy.dist_machine_trip(ibus=101, id='1 ')
    psspy.run(tpause=1.05)
    psspy.dist_clear_fault()
    psspy.run(tpause=5.0)
    i=i+1

Is this OK? How can I do to name the outfile as a variable when the 1st (i=1) simuliatin 1.out the 2nd(i=2) simulation 2.out

I do not know how to do this properly ,please give some advices,Thanks a lot!

Thanks. it works well.

@PieterJ Use the function CHNF to output channel into excel and txt, but how do we know the channels =[1,2,3,4,5....] represent which channel. In other words, channel 1 represents what? Thanks!

@jconto The only thing I want to do is to convert the name of files like savnw.sav bench.sav to savnw_C.sav bench_C.sav . In other words we want to get the name of savnw.sav by the format of string to use the python command sfile = "savnw"+"_C.sav"

@jconto Thanks Traceback (most recent call last): File "E:\007\gensp.py", line 42, in <module> psspy.save(case_root + "_C.sav") TypeError: can only concatenate tuple (not "str") to tuple In other woeds case_root = os.path.splitext(case) type(case_root) is tuple not str

@PieterJ Thanks

@terrytian Thanks for your answer, but it's look like no the thing. What I want to do is to find all the .sav files in the file box E:\007 ,and convert all the generators and loads for dynamic simulation, then the converted files named like Origianl file1.sav and the new name is 1_C.sav

@Saimani Kumar Python 2.7

@PieterJ The main program written by MATLAB calls python subroutines to achieve PSS/E simulation? So perfect, but how to written the MATLAB commands?

I want to find all the .sav files in E:\007, and conver the generators and loads use cong( ) and conl( ) function, but there are some errors in the program I wrote, anyone can help me ?
Thank you very much!

import os,sys
sys.path.append(r"C:\Program Files\PTI\PSSE33\PSSBIN")
os.environ['PATH'] = r"C:\Program Files\PTI\PSSE33\PSSBIN;" + os.environ['PATH']
os.chdir(r"E:\007")
import psspy
import redirect
import glob
PYTHONPATH = r'C:\Program Files\PTI\PSSE33\EXAMPLE'


sys.path.append(PYTHONPATH)
os.environ['PATH'] += ';' + PYTHONPATH

redirect.psse2py()

for CASE in glob.glob(os.path.join('E:\\007\\','*.sav')):
    psspy.psseinit(150000)
    psspy.case(CASE)

    psspy.cong(0)
    psspy.conl(0,1,1,[0,0],[0.0,0.0,0.0,0.0])
    psspy.conl(0,1,2,[0,0],[0.0,0.0,0.0,0.0])
    psspy.conl(0,1,3,[0,0],[0.0,0.0,0.0,0.0])

    case_root = os.path.splitext(sys.argv[1])[0]
    psspy.save(case_root + "_C.sav")

There ERRORS are as follow:

Traceback (most recent call last):
  File "E:\007\21.py", line 32, in <module>
    case_root = os.path.splitext(sys.argv[1])[0]
IndexError: list index out of range

@jconto "Now repeat the gen trip run with less amount of SR by taking out of the dyr file the governor model of another unit to simulate lower SR % conditions." in other words, in the 1st simulation (39bus-system),we use 10 governor models, and the 2nd simulation,we should use 9 governor models?

In PSS/E simulation, for example ,a New England 39-bus System , How to use a Python program to set up the system of different levels for spinning reserve, for example, 5%, 10%, 15%? and different load levels for example 100%, 95%, 90% and so on? and in the simulation , for example the spinning reserve level is 15% while the load level is 90% ,we use Python to finish the psse simulation and dynamic simulation, but what shall we do to ensure the system stability and power balance（use python）？

Thank you ！

@yfwing I could not find any illustration about the function CHNFexcept a few statements in dytools. So I don't know how to use the function CHNF, could you please give me some tips? Thanks

Thank you. Dear friend, I am a student in China , I want to communicate with you and learn from you,could you please tell me your email? Mine is bob1026@163.com Best Wishes!

I want to output the STATE and DSTATE even the formation of nodal admittance matrix Y when we simulate on PSS/E? Any Python command can do this?

When we do simulation on PSS/E the output file may be writtrn into .out files,but it may difficult to process the datas by matlab,so I want to out put the datas into .xls or .txt files use Python,but I don't know how to do it ? Anyone can help me ?

I want to decribe wind machine as a time-varying load,is that OK?

@EBahr thanks. May I have the pleasure to know your email,I want to learn from you and communicate with you, best wishes.

Dear EBahr,you have done so excellent! Could you help me? I want to read the standard psspy API for learn the functions and to use psse btter. unfortunately I do not know how can I get it or where to get it,my email is bob1026@163.com. Thanks a lot!

great！ Thanks

dynamics dynamic simulation

Yes,this is just a project at university,please help me , thank you!