Sry. I miss parenthesis text. Thanks. I'll try to redefine the network parameters so!
Best regards, Vitor Ribeiro. 2014-07-31 20:53 GMT+01:00 Vitor Ribeiro <[email protected]>: > 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. > -- Com os melhores cumprimentos, Vitor Ribeiro.
