ok, so the effect of nominal voltage is represented by dependence between basekv and line parameters but matpower does not recalculate them, right?
> On 12 марта 2014 г., at 17:19, Ray Zimmerman <[email protected]> wrote: > > Only if you keep everything else "the same”. Changing the nominal voltage > also requires that you adjust the p.u. line impedances accordingly (which > were presumably derived from the original basekV). These branch parameters > obviously *do* affect the solution. > > -- > Ray Zimmerman > Senior Research Associate > B30 Warren Hall, Cornell University, Ithaca, NY 14853 > phone: (607) 255-9645 > > > >> On Mar 12, 2014, at 9:04 AM, Vladimir Frolov >> <[email protected]> wrote: >> >> that's right, but if I increase nominal voltage I should have less losses, >> right? >> >> but they are just the same >> >>> On 12 марта 2014 г., at 16:45, Ray Zimmerman <[email protected]> wrote: >>> >>> Yes and yes. That value is only necessary if you want to convert p.u. >>> voltage back to kV, which MATPOWER has no need to do since it reports all >>> voltage magnitudes in p.u. >>> >>> >>> -- >>> Ray Zimmerman >>> Senior Research Associate >>> B30 Warren Hall, Cornell University, Ithaca, NY 14853 >>> phone: (607) 255-9645 >>> >>> >>> >>>> On Mar 11, 2014, at 5:29 PM, Vladimir Frolov >>>> <[email protected]> wrote: >>>> >>>> Hi all, >>>> >>>> Is it ok that losses and OPF_cost does not depend on baseKV voltage? >>>> >>>> is this baseKV column really nominal voltage for the buses? >>>> >>>> Best, >>>> Vladimir >
