1. That’s the thing - i haven’t run into the cases where constraints are
violated ( during my 0.5 year experience with MATPOWER), however
constraints described in the user guid (section 5.2) does not include
line’s power limits. I just wanted to confirm that.
2. I also just run into ‘OF_FLOW_LIM’ option. It’s default value in the
manual is specified to be 0. So is there any difference between
mpopt = mpoption('OUT_ALL',0,'VERBOSE',0);%,'OPF_FLOW_LIM',1);
[mpc_solved, success] = rundcopf(mpc,mpopt);
and
mpopt = mpoption('OUT_ALL',0,'VERBOSE',0,'OPF_FLOW_LIM',1);
[mpc_solved, success] = rundcopf(mpc,mpopt);
?
On Mon, Jan 20, 2014 at 8:26 AM, Abhyankar, Shrirang G. <[email protected]
> wrote:
> See below.
>
> From: Petr Kaplunovich <[email protected]>
> Reply-To: MATPOWER discussion forum <[email protected]>
> Date: Mon, 20 Jan 2014 07:21:40 -0500
> To: <[email protected]>
> Subject: DCOPF taking into consideration line power limits.(and N-1
> criteria)
>
> Dear All,
>
> I was doing contingency screening research for a last half year using
> MATPOWER and only now decided to read the documentation to MATPOWER
> entirely.
> I was thinking that DCOPF takes into consideration line power flow limits
> (basically the difference between node angles). However it appears to me
> that these constraints are not considered.
>
>
> 1. Am I right?
>
>
> I don't think so. Perhaps you are not setting up correctly causing angle
> limits to be ignored? Please send a small reproducible example that we can
> take a look at.
>
> 2. Is there any easy way to include these constraints to DCOPF solver?
> I have read the section 6.1 but still confused - is there any examples of
> implementation?
>
>
> 3. Is there a way to make DCOPF solver to take into consideration N-1
> security criteria? (i am currently interested only in line outages)
>
>
> You'll need to extend MatPower's DCOPF by introducing additional
> constraints, variables for the contingency cases. See the manual section on
> 'Extending the OPF'.
>
> Shri
>
>
> Thank you!
> Petya
>
>
