Wenlei Bai wrote:
Dear community,
I try to run ACOPF on large bus number cases, such as
runopf(case1888rte), case2848rte, case2869pegase, etc., but all of
them can't be solved. Do I need to change solver in order to solve
them, or they are just not solvable for ACOPF?
Thanks,
Wenlei
Dear Wenlei Bai, when using the soft limits feature for the opf, as in
>> mpc = loadcase('case1888rte'):
>> mpc = toggle_softlims(mpc, 'on');
>> mpopt = mpoption;
>> mpopt.opf.ac.solver='IPOPT';
>> mpopt.ipopt.opts.max_iter = 1000;
>> res = runopf(mpc, mpopt);
then the opf converges, but further investigation shows that the bus
voltage magnitudes in the result are wildly off limits, which is a
strong indication that the case may not be AC-solvable.
Regards,
Carlos.
