I’m not sure how useful it is to use an AC power flow model for a simplified zonal model. And with a DC power flow the only thing that matters is that you have one REF bus where the voltage angle is fixed and for the rest the real power injection is fixed (doesn’t matter if they are specified as PV or PQ).
Ray > On May 31, 2017, at 11:52 AM, Stalinski, Danisz > <[email protected]> wrote: > > Hello everyone, > > I am trying to model a real power system that is quite complex. While I > haven’t been able to find data for every single load/generator/branch/etc. > for the full system, I have begun by analyzing a simplified representation of > the system where I have aggregated buses by their “zone” (the area of > interest is subdivided into zones, and data is more readily available by zone > than by individual bus). The idea is to represent each zone by a single > “equivalent” bus. > > My question is as follows: should I be declaring these aggregated buses as PV > or PQ buses? In reality each zone has both generators and loads, so I’m > unsure if a PQ bus or PV bus is more appropriate. > > If any of you could provide some insight into this problem it would be > greatly appreciated. > > Regards, > > Danisz Stalinski
