I would recommend you to go through these 8 steps (Incremental approach)
suggested  by Jose L. Marin. Click the link given below and follow the
steps. When I was working with the German Grid I had same problems but
these steps really worked out in my case. I hope you will get solution.


On Wed, Mar 7, 2018 at 11:23 PM, Aakanksha Dubey <aad...@lehigh.edu> wrote:

> Hi All,
> I am developing a model for transmission grid at Lehigh Valley. My model
> seems to converge for DC OPF but is unable to converge for AC. I have tried
> the following to make it converge but nothing works:
>    - Relaxed Vmax, Vmix, BR_R, Rate_A,Rate_B,Rate_C
>    - Checked the tap ratio, Qmax, Qmin,Pmax,Pmin
>    - Tried to change the OPF options by using opf.init_from_mpc
>    - Using mpoption I tried to change the solver to IPOPT& MINOPF but
>    MATLAB keeps giving me an error that I need to download it. After
>    downloading and connecting the path to MATLAB it gives me the same error.
> I have attached my casefiles to this email. Please let me know if anyone
> can find an issue with the model.
> Thank you!
> Aakanksha

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