The particular reason a specific numerical algorithm fails for a given problem
is not always easy to determine.
On this problem, you can try turning on the mips.step_control option. That
seems to work for me.
Ray
> On Jul 18, 2019, at 10:59 AM, Aamir Nawaz <[email protected]> wrote:
>
> Dear Researchers,
>
> I have tried to execute the following and error comes. Can anyone explain why
> algorithm like PDIPM fails to solve this large system? However, i have solved
> it using evolutionary algorithm and it is converged. Is there any limit of
> number of dimensions for PDIPM or others? If no, then suggest me how i can
> solve it or suggest any other algorithm like SDPOPF etc. I waiting for your
> kind reply.
>
> runopf(case13659pegase)
> MATPOWER Version 6.0, 16-Dec-2016 -- AC Optimal Power Flow
> PDIPMOPF Version 4.1, Build 18, 11-Nov-2011
> Copyright (c) 2007-2011 by Power System Engineering Research Center (PSERC)
>
> >>>>> Did NOT converge (4.42 seconds) <<<<<
>
> --
>
> Regards,
> Aamir Nawaz.
