Hello Fiaz, If you want to perform OPF then you have to put limits on active and reactive power generation; i.e. Pmax, Pmin, Qmax Qmin in generator matrix column. Just try to format your case according to any sample case;e.g. case9. You can get additional information from manual in the Table B-1 to B-4.
regards Mirish On Thu, May 5, 2016 at 1:54 PM, Fiaz Ahmad <[email protected]> wrote: > I am putting P=5000W and Q=3500VARs as a substation. How can I make P Q > unlimited? Any suggestion > On May 5, 2016 2:48 PM, "Jovan Ilic" <[email protected]> wrote: > >> >> Fiaz, >> >> If you are using the data in your original post only, there are no >> generators in >> that data set. You should put a (unlimited P and Q) generator where the >> substation >> would be in your system. >> >> Jovan >> >> >> On Thu, May 5, 2016 at 7:29 AM, Fiaz Ahmad <[email protected]> >> wrote: >> >>> Yes I m using balanced three phase but how can I do it with matpower. I >>> changed the bus data and gen.data matrices but I couldn't get the power >>> flows. >>> On May 5, 2016 2:24 PM, "Jovan Ilic" <[email protected]> wrote: >>> >>>> >>>> You could use Matpower to simulate distribution systems if you are only >>>> interested in balanced 3 phase without mutual line coupling systems. >>>> >>>> Jovan >>>> >>>> >>>> On Thu, May 5, 2016 at 3:41 AM, Ji Chen <[email protected]> wrote: >>>> >>>>> Hi Shri, >>>>> I am interested in power flows for distribution networks >>>>> recently. Do you mean that Matpower is not a good chioce for >>>>> distribution networks simulation or it just can not do distribution >>>>> networks simulation? >>>>> >>>>> Thanks, >>>>> Ji >>>>> >>>>> >>>>> >>>>> At 2016-05-04 23:02:50, "Abhyankar, Shrirang G." <[email protected]> >>>>> wrote: >>>>> >>>>> http://ewh.ieee.org/soc/pes/dsacom/testfeeders/index.html >>>>> >>>>> However, as Jovan mentioned, MATPOWER is for solving balanced >>>>> three-phase transmission systems. If you are interested in solving >>>>> unbalanced three-phase power flows for distribution networks then refer to >>>>> either OpenDSS or GridLAB-D. >>>>> >>>>> Shri >>>>> >>>>> From: Fiaz Ahmad <[email protected]> >>>>> Reply-To: MATPOWER discussion forum <[email protected]> >>>>> Date: Wednesday, May 4, 2016 at 8:49 AM >>>>> To: MATPOWER discussion forum <[email protected]>, " >>>>> [email protected]" <[email protected]> >>>>> Subject: Re: modification on Matpower case.m file for power flow of >>>>> distribution system >>>>> >>>>> Thanks Jovan, >>>>> >>>>> In Matpower there are no test cases for distribution systems... Where >>>>> can i find IEEE distribution system test cases? >>>>> >>>>> Regards >>>>> >>>>> >>>>> Have a nice day >>>>> >>>>> Regards, >>>>> FIAZ AHMAD >>>>> PhD Student, >>>>> FENS Sabanci University, >>>>> Istanbul Turkey >>>>> >>>>> >>>>> >>>>> On Wed, May 4, 2016 at 4:46 PM, Jovan Ilic <[email protected]> >>>>> wrote: >>>>> >>>>>> >>>>>> Fiaz, >>>>>> >>>>>> You are missing lots of data here. I suggest looking at IEEE >>>>>> distribution system >>>>>> test cases to see what is involved. Matpower is used for >>>>>> transmission systems >>>>>> not distribution systems. >>>>>> >>>>>> Jovan >>>>>> >>>>>> On Wed, May 4, 2016 at 3:45 AM, Fiaz Ahmad <[email protected] >>>>>> > wrote: >>>>>> >>>>>>> Hi. i have the following data files for ieee 33 bus radial >>>>>>> distribution system. i want to modify the case33.m file in matpower to >>>>>>> carry out the power flow of the above distribution system. Please guide >>>>>>> me >>>>>>> how can i achieve that. >>>>>>> >>>>>>> linedata33 >>>>>>> % Bus fbus tbus R X >>>>>>> 1 1 2 0.0922 0.0470 >>>>>>> 2 2 3 0.4930 0.2511 >>>>>>> 3 3 4 0.3660 0.1864 >>>>>>> 4 4 5 0.3811 0.1941 >>>>>>> 4 5 6 0.8190 0.7070 >>>>>>> 6 6 7 0.1872 0.6188 >>>>>>> 7 7 8 0.7114 0.2351 >>>>>>> 8 8 9 1.0300 0.7400 >>>>>>> 9 9 10 1.0440 0.7400 >>>>>>> 10 10 11 0.1966 0.0650 >>>>>>> 11 11 12 0.3744 0.1238 >>>>>>> 12 12 13 1.4680 1.1550 >>>>>>> 13 13 14 0.5416 0.7129 >>>>>>> 14 14 15 0.5910 0.5260 >>>>>>> 15 15 16 0.7463 0.5450 >>>>>>> 16 16 17 1.2890 1.7210 >>>>>>> 17 17 18 0.7320 0.5740 >>>>>>> 18 2 19 0.1640 0.1565 >>>>>>> 19 19 20 1.5042 1.3554 >>>>>>> 20 20 21 0.4095 0.4784 >>>>>>> 21 21 22 0.7089 0.9373 >>>>>>> 22 3 23 0.4512 0.3083 >>>>>>> 23 23 24 0.8980 0.7091 >>>>>>> 24 24 25 0.8960 0.7011 >>>>>>> 25 6 26 0.2030 0.1034 >>>>>>> 26 26 27 0.2842 0.1447 >>>>>>> 27 27 28 1.0590 0.9337 >>>>>>> 28 28 29 0.8042 0.7006 >>>>>>> 29 29 30 0.5075 0.2585 >>>>>>> 30 30 31 0.9744 0.9630 >>>>>>> 31 31 32 0.3105 0.3619 >>>>>>> 32 32 33 0.3410 0.5302 >>>>>>> >>>>>>> loaddata33 >>>>>>> %Bus P Q >>>>>>> 1 0 0 0 >>>>>>> 2 100 60 0 >>>>>>> 3 90 40 0 >>>>>>> 4 120 80 0 >>>>>>> 5 60 30 0 >>>>>>> 6 60 20 0 >>>>>>> 7 200 100 0 >>>>>>> 8 200 100 0 >>>>>>> 9 60 20 0 >>>>>>> 10 60 20 0 >>>>>>> 11 45 30 0 >>>>>>> 12 60 35 0 >>>>>>> 13 60 35 0 >>>>>>> 14 120 80 0 >>>>>>> 15 60 10 0 >>>>>>> 16 60 20 0 >>>>>>> 17 60 20 0 >>>>>>> 18 90 40 0 >>>>>>> 19 90 40 0 >>>>>>> 20 90 40 0 >>>>>>> 21 90 40 0 >>>>>>> 22 90 40 0 >>>>>>> 23 90 50 0 >>>>>>> 24 420 200 0 >>>>>>> 25 420 200 0 >>>>>>> 26 60 25 0 >>>>>>> 27 60 25 0 >>>>>>> 28 60 20 0 >>>>>>> 29 120 70 0 >>>>>>> 30 200 600 0 >>>>>>> 31 150 70 0 >>>>>>> 32 210 100 0 >>>>>>> 33 60 40 0 >>>>>>> >>>>>>> Please help and guide.... Thanks >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>> >>>>> >>>>> >>>>> >>>> >>>> >>
