Generator trip simulation

Before current script the folllowing codes have to be placed:

• DigSILENT Initialization
• Get application methods
• Get folders
• Get elements

Channel definition synchronous machines

name2sym = {}
for sym in syms:
    name2sym.update({sym.cDisplayName:sym})
    elmres.AddVars(sym,
                    's:ve',    # p.u  Excitation Voltage
                    's:pt',    # p.u.   IN    Turbine Power
                    's:ut',    # p.u.   OUT   Terminal Voltage
                    's:ie',    # p.u.   OUT   Excitation Current
                    's:xspeed',# p.u.   OUT   Speed
                    's:xme',   # p.u.   OUT   Electrical Torque
                    's:xmt',   # p.u.   OUT   Mechanical Torque
                    's:cur1',  # p.u.   OUT   Positive-Sequence Current, Magnitude
                    's:P1',    # MW     OUT   Positive-Sequence, Active Power
                    's:Q1',    # Mvar   OUT   Positive-Sequence, Reactive Power
                    'c:firel', # deg    Rotor angle with reference to reference machine angle
                    )

Define trip event for ‘G1’ synchronous machine

evt1 = events_folder.CreateObject('EvtSwitch', 'G1 trip event');  # generator switch event is created here
evt1[0].p_target = name2sym['G1']   # event target is the second synchronous generator replace 'G1' with the particular name
evt1[0].time = 1.0  # the event will be executed at t=1s

Power flow and run simulation

ldf.Execute()  # executes power flow
ini.Execute()  # executes initialization
sim.Execute()  # executes simulation

Export results to file

comres = app.GetFromStudyCase('ComRes');
comres.iopt_csel = 0
comres.iopt_tsel = 0
comres.iopt_locn = 2
comres.ciopt_head = 1
comres.pResult=elmres
comres.f_name = r'C:\results.txt'  # change 'C:\results.txt' with your path
comres.iopt_exp=4
comres.Execute()

Clear events an reset calculations

events_folder.Delete()
app.ResetCalculation()