PSSE transmission line series elements

asked 2024-09-12 13:59:18 -0500

SDA
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I'm trying to create a transmission line circuit contingency generator that will outage all series elements of a line. I'm having a hard time making it past the third series element. Any help is appreciated.

def GetNextBus():
    NextBusArray=[]
    NextCktArray=[]
    ierr = psspy.inibrn(int(x),2)
    text_file.write('CONTINGENCY %s\n' %(StartBus))
    while ierr==0:
        ierr, NextBus, NextCkt = psspy.nxtbrn(int(x)) 
        if ierr == 0:
            NextBusArray.append(str(NextBus))
            NextCktArray.append(str(NextCkt))
        NextBusArray2 = NextBusArray    
        text_file.write('DISCONNECT BRANCH FROM BUS %s TO BUS %s CKT %s\n' %(x, NextBus, NextCkt))
        # for index, k in enumerate(NextBusArray2):
            # if k not in BUSES2:
                # GetNextBus() 
            # else:
                # text_file.write('DISCONNECT BRANCH FROM BUS %s TO BUS %s CKT %s\n' %(StartBus, x, ickt))
    text_file.write('END\n')       
#    
#   
for i in BUSES2:
    Temp1 = [] 
    tobuses=[]
    ckts = []
    StartBus = str(i)
    ierr = psspy.inibrn(int(StartBus),2)
    while ierr==0:
        ierr, jbus, ickt = psspy.nxtbrn(int(StartBus))
        if ierr == 0:
            tobuses.append(str(jbus))
            ckts.append(str(ickt))
    Temp1 = tobuses
    for index, x in enumerate(Temp1):
        if x not in BUSES2:
            GetNextBus() 
        else:
            text_file.write('CONTINGENCY %s\n' %(StartBus))
            text_file.write('DISCONNECT BRANCH FROM BUS %s TO BUS %s CKT %s\n' %(StartBus, x, ickt))
            text_file.write('END\n')         
text_file.close()

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path = <path to case> psspy.case(path+'\\savnw.sav') ctgfile = path + '\\P2.con' BUSES2 = [154, 153, 203] def GetBranches(x): tobusArray=[] CktArray=[] ierr = psspy.inibrn(x,2) while ierr==0: ierr, NextBus, NextCkt = psspy.nxtbrn(x) if ierr == 0: tobusArray.append(NextBus) CktArray.append(str(NextCkt)) return tobusArray, CktArray #_________________________________________________________ temp1 = [] text_file = open(ctgfile,'w') for StartBus in BUSES2: temp1.append(StartBus) tobuses=[] ckts = [] tobuses,ckts = GetBranches(StartBus) print('Branches off bus ',StartBus) print(tobuses, ckts) for i in range(len(tobuses)): jbus = tobuses[i] ickt = ckts[i] if jbus in temp1:continue # already branch processed! # write ctg txt text_file.write('CONTINGENCY Branch_%s-%s-%s\n' %(StartBus, jbus, ickt)) text_file.write('DISCONNECT BRANCH FROM BUS %s TO BUS %s CKT %s\n' %(StartBus, jbus, ickt)) text_file.write('END\n') text_file.close()

PSSE transmission line series elements

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