Simulation Stuck at 53 iteration

[Sadam Hussain]

Hello Everyone, 

Thank you for this repository, it is very interesting to couple the pyomo with openDSS. I'm a Ph.D. student currently working on Optimal power flow for low voltage distribution systems. At the moment, I'm trying to use your code.

First I run the tutorial code which works fine on my laptop, but when I run the MAIN_Unbalance_OPF_RUN.py code it stuck on 53rd iterations. I am using the IPOPT solver. when I reduce the iteration to 52 it gives me results.

I need your kind support on this. 

Thanking you in advance!

Best Regards,

Sadam Hussain

[valentin...@gmail.com]

Hi Sadam,

As mentioned in the tutorial doc, I recommend using knitro instead of IPOPT. You can get a 1month trial for free.

IPOPT struggles with the PV inverter limits constraint. You could eliminate this constraint if using IPOPT (or find a way of relaxing it). See line 236 in  OPF_model_creator_v01.py

Best regards,

Valentin