The branches are identified by their FROM and TO bus numbers (external), and
for any parallel lines between the same buses, their order. You can use this to
build your own mapping I suppose.
Ray
> On Apr 6, 2015, at 3:21 PM, Lu, Yueyun <[email protected]> wrote:
>
> Hi all,
>
> I have one question regarding branch index mapping between the extracted
> island and the original network. In particular, after I disable several
> lines, the network may break into islands. I solve dc power flow for each
> island. How can I relate the branch information in each island to the
> original network. It seems that internal and external indexing convert only
> works for bus index. Is there a straightforward way to do the branch mapping?
> Thanks a lot for your help.
>
> Best,
> Yueyun