yes done, thank you very much
بتاريخ ٢٠١٨/٠٣/٢١ ١٢:٥٨ م، كتب "Jose Luis Marín" <[email protected]>: > Hello Mohammed, > > The problem is in the *branch joining buses 16 and 17* (line 191 in the > file). This branch had zero R and zero X. Just edit the value of X to > something reasonable (I used 0.001), and the case solves just fine, in 4 > iterations. > > -- > Jose L. Marin > Grupo AIA > > > > 2018-03-21 3:51 GMT+01:00 Mohammed Alhajri <[email protected]>: > >> i got >> >> ++++++++++++++++++++++++++++++++ >> >> 19980 NaN >> 19981 NaN >> 19982 NaN >> 19983 NaN >> 19984 NaN >> 19985 NaN >> 19986 NaN >> 19987 NaN >> 19988 NaN >> 19989 NaN >> 19990 NaN >> 19991 NaN >> 19992 NaN >> 19993 NaN >> 19994 NaN >> 19995 NaN >> 19996 NaN >> 19997 NaN >> 19998 NaN >> 19999 NaN >> 20000 NaN >> Gauss-Seidel power flow did not converge in 20000 iterations. >> >> >>>>> Did NOT converge (47.99 seconds) <<<<< >> >> >> On 20 March 2018 at 19:44, Ray Zimmerman <[email protected]> wrote: >> >>> Unfortunately, I do not have time to work on this myself. I was just >>> giving a suggestion for another direction to try if you want to understand >>> the issue that MATPOWER is having with your case. Could you post the output >>> (using verbose set to 2) of runpf() when using a MATPOIWER case file >>> that corresponds to the solved case from the Hadi Sadat code? >>> >>> And if you have any questions about the MATPOWER case format or MATPOWER >>> power flow options, feel free to ask. >>> >>> Ray >>> >>> >>> >>> On Mar 20, 2018, at 11:28 AM, Mohammed Alhajri <[email protected]> >>> wrote: >>> >>> Ok, i have attached the case information in format of Hadi Saadat code, >>> can you please try it in MATPOWER? >>> >>> because we have spent more than three weeks checking the format, but >>> still dose not converge... >>> >>> Regards,,, >>> >>> بتاريخ ٢٠١٨/٠٣/٢٠ ٦:٢٦ م، كتب "Ray Zimmerman" <[email protected]>: >>> >>>> It’s possible that the modeling is not identical or that there is some >>>> error in your conversion to MATPOWER format. You can check by talking the >>>> solved case from your other software, converting that solved case to >>>> MATPOWER and then trying the MATPOWER power flow. It should converge in a >>>> single iteration. If it does not, then you know that there is either a >>>> mistake somewhere or a difference in modeling. >>>> >>>> Ray >>>> >>>> >>>> On Mar 16, 2018, at 12:42 PM, Mohammed Alhajri <[email protected]> >>>> wrote: >>>> >>>> i tried that but unfortunately not work >>>> >>>> بتاريخ ٢٠١٨/٠٣/١٦ ٨:٣٠ م، كتب "Abhyankar, Shrirang G." <[email protected] >>>> >: >>>> >>>>> See FAQ #5 <http://www.pserc.cornell.edu/matpower/#pfconvergence> >>>>> >>>>> >>>>> >>>>> Thanks, >>>>> >>>>> Shri >>>>> >>>>> Ph: (630) 252 0219 <(630)%20252-0219> >>>>> >>>>> www.mcs.anl.gov/~abhyshr >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> *From: *<[email protected]> on behalf of >>>>> Mohammed Alhajri <[email protected]> >>>>> *Reply-To: *MATPOWER discussion forum <[email protected]> >>>>> *Date: Friday, March 16, 2018 at 11:26 AM* >>>>> *To: MATPOWER discussion forum <[email protected] >>>>> <[email protected]>>* >>>>> *Subject: Re: Power Flow in Matpower* >>>>> >>>>> >>>>> >>>>> any answer to this question? >>>>> >>>>> >>>>> >>>>> بتاريخ ٢٠١٨/٠٢/٢٥ ٧:١٨ م، كتب "Mohammed Alhajri" <[email protected]>: >>>>> >>>>> Hello All, >>>>> >>>>> >>>>> >>>>> I did the power flow for a 89-bus network and it converges using Hadi >>>>> Sadat code after 17080 iterations. The accuracy was 1e-8 and the method is >>>>> Gauss-Seidel Method. >>>>> >>>>> >>>>> >>>>> But when I did the power flow using matpower it does not converge! I >>>>> tried to increase the maximum iteration, I put it 100000, and still did >>>>> not >>>>> cnvarge! >>>>> >>>>> >>>>> >>>>> I have attached the data according to Hadi Sadat Code, can any one try >>>>> to do the power flow using matpower? >>>>> >>>>> >>>>> >>>>> >>>> >>> >> >
