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. >
