(please don’t hijack another thread with a new, unrelated question … create a
new one with its own subject line)
If the voltage at bus 1 is fixed (Vmin = Vmax) then there is a single solution
to the power flow equations and there is no room for optimizing anything. So
just set the values of Pmax, Qmax and Qmin so that this single power flow
solution is feasible or use a simple power flow as Shri suggested.
Ray
On Jun 27, 2014, at 1:34 PM, Fereshteh Moghateli <[email protected]> wrote:
> thanks
> i have not any generator and have to run opf, but i don't now how much are
> Pmax,Qmax and Qmin in mpc.gen ? i give zero to rest of parameter like Pg &
> Qg
>
>
> On Fri, Jun 27, 2014 at 9:12 AM, Abhyankar, Shrirang G. <[email protected]>
> wrote:
> You'll have to define the coefficients of the cost function in
> mpc.gencost. Read the manual for the generator cost data format.
>
> Note that with a single generator in the system, the OPF will diverge once
> any limits (voltage, line flow, etc.) are hit (unless you have
> dispatchable load). I would simply run a power flow instead of an OPF for
> your case as both would give identical results. An OPF should be typically
> used when there are multiple generators available.
>
> Shri
>
> From: Fereshteh Moghateli <[email protected]>
> Reply-To: MATPOWER discussion forum <[email protected]>
> Date: Fri, 27 Jun 2014 08:05:52 -0800
> To: MATPOWER discussion forum <[email protected]>
> Subject: Re: simulating the outage of a generator
>
>
> >hi
> >
> >in a distribution feeder that there isn't any generator
> > or DG,for run OPF if i want define a cost function for node1(it is
> >define ref node), how i can define mpc.gen?
> >
> >
> >On Fri, Jun 27, 2014 at 5:36 AM, Abhyankar, Shrirang G.
> ><[email protected]> wrote:
> >
> >Yes.
> >
> >On Jun 27, 2014, at 4:28 AM, "ahmad rezaee" <[email protected]>
> >wrote:
> >
> >
> >
> >Dear all
> >
> >For simulating the outage of a generator, just changing the 8th column of
> >mpc.gen (the column related to the status of that generator) to zero is
> >enough? This change truly simulates the outage of that generator?
> >
> >Thank you very much
> >
> >Kind Regards
> >Ahmad
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
>
>
