Grid Stability using PyPSA

[maa...@g.uky.edu]

Greetings everyone,

I am trying to do a stability analysis study using PyPSA. I was wondering if PyPSA has any functions associated with grid stability analysis implemented yet. I know that small signal stability analysis may be implemented in the future, however has voltage stability analysis been implemented yet?

 

One possible solution that I thought of is viewing stability as a constraint in addition to normal OPF voltage and thermal constraints. However, I am having a hard time how to include stability constraints into the model in PyPSA.

 

Best,

Moe

University of Kentucky College of Engineering

[Tom Brown]

Hi Moe,

We haven't integrated too much stability analysis yet, although we may
get to it in the next 2/3 years.

The OPF is linear, so you can only implement voltage angle limits.
However, since these are linearly related to the power flow and the
impedance

flow = (angle difference) / x

putting limits on angle difference is the same as changing the thermal
constraints:

| (angle difference) | <= (angle limit)

is the same as

| flow | <= (angle limit) / x

So just adjust the flow limit = (angle limit) / x .

Best,

Tom

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Karlsruhe Institute of Technology (KIT)
Institute for Automation and Applied Informatics (IAI)

Dr. Tom Brown
Energy System Modelling

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[maa...@g.uky.edu]

Thankyou so much for your reply Mr. Brown.

 Looking forward to future features  in PyPSA

Moe