Dear Ray, Thanks for reply. Actually I just needed the load flow with facility of voltage constraints but later on I found that it's not possible in normal load flow that's why I'm now interested in opf. it provides the facility of voltage constraints. And my voltage constraints limit is 0.95-1.05 . but now you're saying to set bus voltage at 0.85 which is lower than lower constraint value. I would be so much grateful to you if you kindly say if there is any other way to accomplish my demand. Thanks
On Jan 31, 2017 11:34 PM, "Ray Zimmerman" <[email protected]> wrote: > The problem is not feasible due to voltage constraints. Notice that > voltages in the power flow solution go as low as 0.813 p.u., but your case > includes OPF lower bounds on voltages at every bus of 0.95 p.u. Relaxing > those voltage constraints allows the OPF to converge. > > define_constants; > mpc = loadcase('case_radial16'); > mpc.bus(:, VMIN) = 0.85; > r = runopf(mpc); > > > Ray > > > > On Jan 31, 2017, at 9:55 AM, siddique tomal <[email protected]> > wrote: > > Dear Ray, > Thanks for your reply. I have prepared a 16 bus system. The power flow > program runs OK with that but when I go for Optimal Power Flow it shows it > did not convergence. I have attached the file below here. Please would you > check the file and direct me what to change ? Waiting to hear from you. > Thanks > > On Jan 6, 2017 1:33 AM, "Ray Zimmerman" <[email protected]> wrote: > >> See Section 2.3.1 and Appendix B in the User’s Manual >> <http://www.pserc.cornell.edu/matpower/manual.pdf>. It’s probably >> easiest to start with an existing case file and modify it for your data. >> Let us know if you have a specific question about the case format. >> >> Ray >> >> >> >> On Jan 2, 2017, at 12:33 PM, siddique tomal <[email protected]> >> wrote: >> >> Dear all, >> i need to create a new case file of 16 bus system. i have attached the >> data table i have now. but my asking is how can i develop a new case file >> with the following data. its important to mention that the system baseMVA >> is 100 MVA and base kva of 23 kV. >> Thanks to all. >> <16 bus data.png> >> >> >> <case_radial16.m> > > >
