Question about tripping a generator

[xiaoheimai95]

Dear Dr. Cui and his crew,
Hello! When I encountered the following problems in modeling, I would like to consult you:
When I impose a fault, then add a Toggle to trip REGCV1 10 in order to control the rotor power angle in emergency control, I find that there is still a REGCV1 10 curve when drawing the rotor power angle curve, does it mean that REGCV1 failed to cut off? How to solve this problem? The following is a brief code:

case = andes.get_case("/Users/ieee39/ieee39_3_REGCV1.xlsx")
ss = andes.load(case, setup=False, no_ouput=True)
ss.add("Toggle", dict(model='RenGen', dev="REGCV1_10", t=5.0))
ss.setup()
ss.PQ.config.p2p = 1
ss.PQ.config.q2q = 1
ss.PQ.config.p2z = 0
ss.PQ.config.q2z = 0
ss.PQ.pq2z = 0
ss.PFlow.run()
ss.TDS.config.criteria = 0
ss.TDS.config.tf = 10
ss.TDS.run()

After the simulation, the pic is:

[jinningwang]

I don't think so, a tripped generator still has value in the variables Pe and omega. You can check the output power, Pe, it should be zero after the event.

[xiaoheimai95]

Here is the pic of Pe and omega, the Pe of REGCV1 10 is zero after the event, but the omega still has value.

[jinningwang]

Given the omega's equation in Documentation, I feel it's reasonable to have non-zero omega? In REGCV1, omega is an emulated variable rather than one has actual physical meaning.

[xiaoheimai95]

Does it mean that the omega and delta value of the tripped generator are just mathematically, I can just ignore them when consider further research?

[jinningwang]

It's reasonable to have non-zero omega values after being tripped for a REGCV1, they are "emulated" variables. Instead, omega and delta are "actual" variables for a SynGen.
I don't see any major trouble to skip these two non-zero values after being tripped.