Hi, I would like to unsubscribe from this group. Could you please do the needful
Regards, Rejitha On Wed, Oct 7, 2009 at 12:29 PM, Thomas Trötscher < [email protected]> wrote: > My experience is to use fmincon (or any other part of the optimization > package) as a last resort only. For AC optimal power flow try the TSPOPF or > MINOPF package, for DC optimal power flow use BPMPD, or even better download > and compile CLP from the COIN-OR project. > > See the MATPOWER homepage for download details. > > Regards, > > Thomas Trötscher > > ------------------------------ > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *mohammad reza > salehizadeh > *Sent:* 7. oktober 2009 05:54 > *To:* [email protected] > *Subject:* fmincon > > Dear Dr. Zimmerman, > > Thank you for establishing this useful email list for debating about > challenges around Matpower program. > > As we know 'fmincon' function used for OPF calculation. It is based on > quasi-newton technique. When Exitflag becomes zero or negative we say the > OPF doesn't converge. On the other hand, we can see in such cases the > feasible set is not null so we have certainly optimal point and therefore > maybe the optimization method used in fmincon function is not strong enough > to find optimal point as it is sensitive to initial point. > > How can coverage be guaranteed in Matpower program when feasible set of OPF > is not null? > > Best regards, > M.Reza Salehizadeh > > > Electrical Engineering PhD student > Science& Research Branch > Islamic Azad University > Tehran-Iran > > > >
