In general, the voltage tends to drop as you get further from the source, if
loads are evenly distributed and line parameters are similar. In your example,
however, you have a much larger load at bus 9 than at bus 8, and in particular,
there is a large reactive load at 9, pulling down the voltage. The low load at
8 and the relatively large line charging capacitance of the 8-9 line help to
support the voltage at 8, relative to 9.
Ray
> On Nov 18, 2015, at 11:11 AM, ALI ZAZOU Abdelkrim
> <[email protected]> wrote:
>
> Hi,
>
> my question is about the voltage level of each buses in a radial distribution
> system. My understanding of this phenomena is that the voltage level of the
> "farest" (in term of r and x) bus will have the lowest voltage level if there
> is no generation or voltage regulator between the slack bus and that bus? Am
> I getting it wright?
>
> Because in the above example, based on the modified iee9_bus case given by
> the tool, i get a strange behaviour. The last bus (8) don't have the lower
> votage level, so based on that how can that factor be explained?
>
> You can find attached to the email, the test case and a figure of the graph
> of the network.
>
> Thank you very much for reading my question
> Abdelkrim
> <9_modif.png><case9_modif.m>
