Hi Vova! :) I am using the model build by the other research group in Irkutsk. They were solving it using the other tool, not Matpower. And converting it in a CDU format I am trying to solve it using Matpower. So yes, I have build the case myself.
Arthur On Tue, Jan 20, 2015 at 10:50 PM, Vladimir Frolov < [email protected]> wrote: > Hi Artur! That is Vova) > > Did you build the case yourself? > > > > On Tue, Jan 20, 2015 at 10:48 PM, Artur Uzbekov < > [email protected]> wrote: > >> Dear Mr. Zimmerman, >> >> Or anyone who can help me. >> I am trying to run a model of a big grid in Matpower. >> It has 130 loads, 329 generators and 286 branches. >> I obtain an optimal solution for DC Power Flow problem which is most >> probably correct (it corresponds to the real data). >> But For AC Power Flow and both DC and AC OPF problems, I get the >> following message: >> Warning: *Matrix is close to singular or badly scaled. Results may be* >> *inaccurate. *And the success flag is 0. >> >> I have checked that the are no islands in the network. >> In some forums people write that it could happen due to the bad modelling >> or too heavy loads. >> But for me this explanation is not clear. Can you please comment on that >> or suggest any other explanation. >> >> Looking forward to hear from you! >> Arthur >> > >
