Thanks Ray you were right, I could solve the case. I hope you have time to fix it in a next Matpower version.
Regards, Santiago 2012/12/12 Ray Zimmerman <[email protected]>: > Santiago, > > I'm guessing you have the optional TSPOPF package installed, right? For some > reason the default solver (PDIPM) is encountering a singular matrix. I don't > no yet why, but some other solvers (MIPS, Ipopt, Knitro, MINOPF) seem to > work fine on that problem. > > mpc=loadcase('t_case9_dcline'); > mpc=toggle_dcline(mpc, 'on'); > opt=mpoption('OPF_ALG', 560); > results=runopf(mpc, opt); > > I notice that 520 (fmincon) crashes on this problem. There is probably a bug > somewhere with initializing the algorithms correctly. I'll look into it. > > Thanks for bringing this to my attention, > > -- > Ray Zimmerman > Senior Research Associate > 419A Warren Hall, Cornell University, Ithaca, NY 14853 > phone: (607) 255-9645 > > > > > On Dec 11, 2012, at 8:17 AM, Santiago Torres <[email protected]> > wrote: > > I dont think it is a matter of transmission lines limits.... I tried > to increase that and it did not work... The case itself is > unfeasible, just that I have to figure out why. However, being an > especial test case with dc transmission lines, may be , I am missing > something. > > Regards, > > Santiago > > 2012/12/11 Jarrad Wright <[email protected]>: > > Unsubscribe > > > > > -- > Dr.-Ing. Santiago Torres > IEEE Senior Member > > Post-Doctoral Fellow > School of Electrical and Computer Engineering > > > University of Campinas, Campinas, SP, Brazil > > http://www.dsee.fee.unicamp.br/ > > Albert Einstein, 400 > 13083-852, Campinas, SP, Brazil > > -- Dr.-Ing. Santiago Torres IEEE Senior Member Post-Doctoral Fellow School of Electrical and Computer Engineering University of Campinas, Campinas, SP, Brazil http://www.dsee.fee.unicamp.br/ Albert Einstein, 400 13083-852, Campinas, SP, Brazil
