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Applying a bus fault in dynamic simulation

asked 2022-08-25 09:42:25 -0600

Erandika gravatar image

updated 2022-08-25 09:57:42 -0600

I'm automating PSSE for a dynamic simulation and I came across this batch command :

"BATDISTBUS_FAULT IBUS UNITS BASEKV VALUES(1) VALUES(2)"

When defining a fault impedance/admittance here, we can define it by MVA. But I'm not sure what they mean by defining a fault impedance/ admittance in MVA.

Can anyone explain me the formula for this?

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answered 2022-08-25 12:50:07 -0600

perolofl gravatar image

First of all I strongly recommend to use Python instead of response file for automation of PSSE.

In PSSE all faults are entered as shunts (G+jB) in MVA. For example a solid three phase fault may be entered as a large inductive shunt (G=0, B=-2e9). In the BAT command VALUES(1) )= G and VALUES(2) = B.

In your case:

BAT_DIST_BUS_FAULT IBUS 1 BASEKV  0 -2e9

BASEKV is only needed if UNITS = 2 or 3 and there is no bus base voltage entered for IBUS in the saved case. Normally BASEKV can be entered as 0.0, i.e.:

BAT_DIST_BUS_FAULT IBUS 1  0  0 -2e9

for a solid three phase fault.

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Asked: 2022-08-25 09:42:25 -0600

Seen: 276 times

Last updated: Aug 25 '22