I don't think there's a problem with your proposed integrated transmission-distribution grid as long as the following is taken care of. 1) The distribution network section is not radial... Since conventional load flow do not converge fine with radial network. 2) At point of common coupling between transmission and distribution, In modelling the PQ load at transmission by a real distribution network you may account or assume the transformer impedances neglected. Such that if you assumed ideal transformer (lossless) the resistance is zero and the transformer is modeled by a very small reactance.
For now this is what I can remember. I recently model such integrated grid. Ahmad A. S. On Sat, Apr 7, 2018, 7:43 PM Arkan Arkan <[email protected]> wrote: > Hi, > > I am wondering how is it possible to simulate combined transmission system > and distribution grid in one place (global one) in the Matpower? I want to > see the effects of contingencies on transmission grid in the distribution > grid measurements values. Actually I want to attach a distribution grid to > one of the load buses of transmission grid and run the whole network. I > highly welcome any suggestion. > > Thanks for any help in advance. > > > >
