Dear Shri, Thank you for your reply.Yes I managed to do that by multiplying all the loads by 3 and running PF (Power Flow). The thing is that if you multiply all the loads by 3 you will get the gerenartion at the slack bus equal to 454.7 MW. If loads are multiplied by 3.5 then power gerenartion at the bus 1 will be 615 MW . My questions are : 1-Isn't any limit for slack(swing) bus that it goes up by increasing the load? 2-If theresn't any limit why increasing loads cannot make up for voltage drop at some buses? Regards Iman
On Wed, Jun 13, 2012 at 8:43 PM, Shri <[email protected]> wrote: > > On Jun 13, 2012, at 10:41 AM, iman wrote: > > > Dear all, > > > > Has anyone managed to see voltage drop in MATPOWER(for example below 0.9 > pu)? > Yes, absolutely. > If you scale the loads high enough you should see a drop in the voltages > below the threshold you want. (unless you are (a) running a power flow and > scaling the swing bus load only ;) or (b) running an OPF with Vmin = 0.9 > pu ) > > > The fact is in real bus systems when you increase loads, you experience > voltage drop at some points but with matpower you can't see that.In real > life substation's output (transformer MVA) and lines are limited but in > MATPOWER the more you raise loads, the more power comes from substation! > > Has anyone have an idea? > > -- > > > > Iman > > > > > > -- Best regards Iman
