Dear all,
I have the following issue when I'm implementing an OPF I would like to ask if
anyone has experienced ever something similar.
Well, I want to check feasibility for constrained and unconstrained OPF's. When
I have only the max limits of Gens on, the opf solves and the same happens when
I have minimum limits on as well as when I include max flow limits for
branches. All the above take plave by manipulating the mpc.gen(:,10)-> 0 or
something close to and mpc.branch(i,6)-> 0 or 9999.
The really weird thing happens when I include the regular min limits for
conventional units but I limit the min P of my Wind gens to 0 or sth close to.
Then the opf runs crazy and instead of solving even easier since I relaxed the
constraints the system becomes infeasible. For the same Load conditions (4,4 G)
while before the Generation was the same now, it increases to 5,3 G and all the
branch loading go up to 300-400 %.
Does anyone have a hint on why this can be happening. It sounds like an error
from my side, but I can see in the results that the constraints are exactly as
I had told matlab to do it.
Any kind of help would be much appreciated.
Best Regards,
Vagelis
