Dear Dr Zimmerman, By setting r=0 , for the branches, the real power flows are zero. But the reactive power flows are not zero. When I set X=0, the voltage magnitudes become 1, and generally the results are not realistic.
How can I set the Reactive power losses = 0 ? I would not like to move to DCOPF, because this formulation ignores Q flows, and sets voltage magnitudes=1. Thank you ________________________________ From: Ray Zimmerman <[email protected]> To: MATPOWER Discussion List <[email protected]> Sent: Tuesday, April 9, 2013 7:37 PM Subject: Re: Ignoring losses One way is to simply zero out the R data for the branches … define_constants; mpc = loadcase('mycase'); mpc.branch(:, BR_R) = 0; r = runopf(mpc); Another is to simply use a DC OPF which is based on a lossless, linear approximation of the network model. r = rundcopf(mpc); -- Ray Zimmerman Senior Research Associate 419A Warren Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-9645 On Apr 5, 2013, at 11:28 PM, Aftognosia Aftognosia <[email protected]> wrote: Hello. >Congratulations for this list and for the matpower community ! > >I am trying to formulate an OPF problem on matpower. >I receive the results but I would like to ignore losses! > >I.e. I am giving the data for r and for x , but I would like to ignore the >losses. >How can I ignore the losses please? > >Thank you >John Eaftos >NTUA > > >
