Hi Carlos, Do I have to model photovoltaic generators in matpower like diesel
generators? My aim is to model photovoltaic inverters as dispatchable reactive
power sources using Matpower's trapezidal modeling of the (P,Q) feasible
region. What is the best way to model them in matpower? Regards Richard >
Date: Mon, 20 Aug 2012 12:23:10 -0400
> From: [email protected]
> To: [email protected]
> Subject: Re: PV Generators and Transformer modelling
>
> So, if the reactive dispatch of your generators is constrained to be
> within a 0.95 power factor, then you can use MATPOWER's trapezoidal
> modeling of the (P,Q) feasible region. as opposed to simple bound
> constraints on P and Q
> for a generator. In your case, if Pmin reaches down to 0, then you have
> more of a cone instead of a trapezoid.
> This is best explained using a picture; see manual for details.
>
> carlos.
>
> Richard Ngonga wrote:
> > Thanks for that, I mean photo voltaic. I am modelling PV generators
> > that are able to dispatch reactive power(i.e operating at -0.95 to
> > 0.95 power factor).
> >
> >
> > > Date: Mon, 20 Aug 2012 01:34:09 -0400
> > > From: [email protected]
> > > To: [email protected]
> > > Subject: Re: PV Generators and Transformer modelling
> > >
> > > Um, an unfortunate crisscross with acronyms... by PV generators do you
> > > mean power-voltage as in classical power flow problem parlance or do
> > you
> > > rather mean "photo voltaic"?
> > >
> > > Richard Ngonga wrote:
> > > >
> > > > Hi there,
> > > >
> > > > I am working on a thesis on reactive power control on a distributed
> > > > network with transformers and PV generators. Can I model the PVs as
> > > > generators on a PV bus or should I model them as capacitors on a PQ
> > > > bus? I'm also having problems modelling transformers from a 20KV
> > > > network to a 0.4KV network; when I use the transformer ration 50 I
> > get
> > > > very large power flows and losses. The transformer data is: Sn
> > 400KVA,
> > > > Usc=10%, Uprm/Usec=20/0.4(KV) and Usec set=1.05.
> > > >
> > > > Regards
> > >
> > >
>
>
