See FAQ #5 <http://www.pserc.cornell.edu/matpower/#pfconvergence>.
Ray > On Jun 24, 2016, at 3:42 AM, anshu dahiya <[email protected]> wrote: > > my 84 bus system is not converging into 10 iteration. what should i take > steps to make it converge. > > On Thu, Jun 23, 2016 at 8:43 PM, Ray Zimmerman <[email protected] > <mailto:[email protected]>> wrote: > Whenever you have a problem with a case file, the first thing to do is always > run case_info() > <http://www.pserc.cornell.edu/matpower/docs/ref/matpower6.0b1/case_info.html> > to check for errors in the connectivity information … > > >> case_info('casem84') > Bad bus numbers: 1 > bus(1, BUS_I) = 0 > > Turns out that bus numbers must be positive integers, as stated in caseformat > <http://www.pserc.cornell.edu/matpower/docs/ref/matpower6.0b1/caseformat.html>. > > Ray > > > >> On Jun 23, 2016, at 1:59 AM, anshu dahiya <[email protected] >> <mailto:[email protected]>> wrote: >> >> sir how to solve the following error in matpower which comes in the case84 >> which i have attached >> Error using sparse >> Index into matrix must be positive. >> >> Error in ext2int (line 141) >> n2i = sparse(mpc.bus(:, BUS_I), ones(nb, 1), 1:nb, >> max(mpc.bus(:, BUS_I)), 1); >> >> Error in runpf (line 111) >> mpc = ext2int(mpc); >> >> On Wed, Jun 22, 2016 at 6:59 PM, Ray Zimmerman <[email protected] >> <mailto:[email protected]>> wrote: >> Assuming this is for a power flow problem, you still have to decide whether >> the bus is voltage controlled or not. If so, make it a PV bus. If not, and >> the DG simply injects a fixed amount of power without controlling voltage, >> then make it a PQ bus. >> >> Ray >> >> >> >> > On Jun 22, 2016, at 1:27 AM, anshu dahiya <[email protected] >> > <mailto:[email protected]>> wrote: >> > >> > how to nominate DG bus which has load as well as generation >> > the nomenclature in the matpower as below >> > 1= PQ bus >> > 2= PV bus >> > 3= reference bus >> > 4= isolated bus >> > i have attached my file plz take a look of it. suggest me solution. >> > <casem84.m> >> >> >> >> >> <casem84.m> > >
