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
