Does the power flow converge successfully? If so, I think you can be confident that it is correct for the input you provided. Without more details, however, I have no way of making any further suggestions.
-- Ray Zimmerman Senior Research Associate 211 Warren Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-9645 On Apr 12, 2011, at 4:15 AM, David Kühnert@TU wrote: > Hello, > > I am a student at Chemnitz University of Technology, Germany. We are > currently working on a project at the low voltage system, to develop an > energy management. > For power flow calculations we are using your Matlab-tool MatPower. It should > calculate the optimal power flow to reduce losses. > But now we have some problems, if we integrate more decentral generated power > as energy users need. The voltage and losses assume values, which are > definitively wrong. We think our problem is the "baseMVA", but we don't know > how to choose this parameter, because it can not be negative. Is it possible, > that MatPower can not calculate such a case of power flow? > > Thanks for your fast answer. > > Yours sincerely > > David Kühnert >
