I am using only 'runopf' function without definning any input parameters. What do you mean with input parameters?
Regards. Vitor Ribeiro 2014-07-31 19:41 GMT+01:00 Göktürk Poyrazoğlu <[email protected]>: > I copy and paste the topology vector x into case_ieee30 in my computer. > I got numerical failure, did not converge in 2 iterations. > > This means that with the given topology and input parameters (i.e. load, > generator limits, voltage limits etc.); there is no feasible point in the > feasible region. > You may try to change the topology or the input parameters to find a > solution to OPF problem. > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > *Gokturk Poyrazoglu* > Teaching Assistant | Student Assistant > Department of Electrical Engineering / The State University of New York at > Buffalo > 230V Davis Hall, Buffalo, NY 14260 > *Phone *: (716) 239 - 8095 > *E-mail* : [email protected] > > > On Thu, Jul 31, 2014 at 2:35 PM, Vitor Ribeiro <[email protected]> > wrote: > >> Hello, >> >> I am working in optimization of distribution networks topology. I am >> trying to use matpower runopf function in case_ieee30 m-file with different >> topology configuration. >> When I try a radial solution composed with 24 branches, defined by: >> >> x=[0 1 1 0 0 1 0 1 0 0 0 0 1 1 0 1 1 0 0 1 1 1 1 1 0 1 1 1 0 1 1 0 1 1 0 >> 1 1 1 0 1 0]; >> >> acting on case file 'case_ieee30' colummn 11 of mpc.branch matrix >> [mpc.branch(:,11)]. I got convergence error and previously a warning: >> >> " Warning: Matrix is singular to working precision. >> > In mips at 423 >> In mipsopf_solver at 147 >> In opf_execute at 91 >> In opf at 225 >> In runopf at 96 >> In f_perdas at 82 " >> >> I cannot understand what is happennig I hope you can help me. >> Best Regards, >> Vitor Ribeiro. >> > > -- Com os melhores cumprimentos, Vitor Ribeiro.
