This is a solver issue. See footnote 5 on page 10 of the MOST User’s Manual <http://www.pserc.cornell.edu/matpower/docs/MOST-manual-1.0.pdf>. For MIQP problems, that is, unit commitment problems with quadratic generator costs and/or ramping wear and tear costs, you will need Gurobi, CPLEX or MOSEK. I recommend Gurobi.
Ray > On Apr 3, 2017, at 3:52 PM, Stephen Suffian <ssuff...@villanova.edu> wrote: > > Hello all, > > I have been able to succesfully run MOST for several days, but I recently > came across a problem when attempting to load cost data into mpc.gencost. I > My original gencost was below: > > mpc.gencost = [ > 2 0 0 2 200 0; > 2 0 0 2 300 0; > 2 0 0 2 500 0; > 2 0 0 2 1000 0; > ]; > > When I changed it to quadratic, it works as long as the first term is 0. > > mpc.gencost = [ > 2 0 0 3 0 200 0; > 2 0 0 3 0 300 0; > 2 0 0 3 0 500 0; > 2 0 0 3 0 1000 0; > ]; > > However, when I change the first term to a non-zero value: > > mpc.gencost = [ > 2 0 0 3 0.004 200 0; > 2 0 0 3 0 300 0; > 2 0 0 3 0 500 0; > 2 0 0 3 0 1000 0; > ]; > > I get the following error. > > error: mpopt2qpopt: Sorry, no solver available for MIQP models > error: called from > mpopt2qpopt at line 92 column 13 > most at line 2065 column 14 > test at line 41 column 5 > > I am using the glpk solver. Does anyone know if this is a solver issue, a > human error (on my part) issue, or otherwise? > > Thanks! > Stephen Suffian