Checking the stability of the model after disturbance

[m-jam20]

Hi. Hope you are well.

I would like to check if my model is stable after fault. How can I check it in ANDES? I found two way, but not sure how exactly I should use them to check stability.

The first one is: andes.routines.criteria.deltadelta(delta, diff_limit)

the second one is: TDS.check_criteria()

this is part of my code related to this:

ss.setup()
ss.PFlow.run()
ss.TDS.config.tf = tf
ss.TDS.config.tstep = tstep
ss.TDS.run()
print("------------check_criteria:",ss.TDS.check_criteria())

[cuihantao]

This one is the security criteria. Check the definition of stability and security -- a system can be stable but violate security criteria. You will want to inspect the rotor angle curves to tell if the system is stable or not.

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On Mar 22, 2024, at 6:33 AM, m-jam20 ***@***.***> wrote: Hi. Hope you are well. I would like to check if my model is stable after fault. How can I check it in ANDES? I found two way, but not sure how exactly I should use them to check stability. The first one is: andes.routines.criteria.deltadelta(delta, diff_limit) the second one is: TDS.check_criteria() this is part of my code related to this: ss.setup() ss.PFlow.run() ss.TDS.config.tf = tf ss.TDS.config.tstep = tstep ss.TDS.run() print("------------check_criteria:",ss.TDS.check_criteria()) — Reply to this email directly, view it on GitHub <#521>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABSNZA6ZCP7OVT6MK3ZBYNLYZQJI5AVCNFSM6AAAAABFDFBJ46VHI2DSMVQWIX3LMV43ERDJONRXK43TNFXW4OZWGQYDQMJUHA>. You are receiving this because you are subscribed to this thread.

[m-jam20]

Thanks. Can andes.routines.criteria.deltadelta(delta, diff_limit) check the rotor angle if the system is stable?

[m-jam20]

I want to have 4000 samples of different faults for IEEE 14 bus system. Is there any way to code that can detects cases as follows? Should I classify them visually and manually?

Voltage magnitude:

voltage angels: