Thank you very much! -- Jose L. Marin Gridquant España SL Grupo AIA
On Mon, Oct 19, 2015 at 10:37 PM, Ray Zimmerman <[email protected]> wrote: > 1. Yes and yes. > 2. For the purpose of an OPF, a dispatchable load is defined as a > generator with negative PMIN and zero PMAX. In this case, an extra constant > power factor constraint is added to the OPF problem. This does not affect > simple power flow. > 3. Yes. > > Ray > > On Oct 19, 2015, at 2:09 PM, Jose Luis Marin <[email protected]> > wrote: > > Hello Ray, > > I read section 7.5.3 of the manual about *DC transmission lines*, but I > still have some questions in what regards simple *powerflow*: > > 1. As I understand it, the implementation will place dummy generators > at each end. Are those buses then switched to PV type, taking the voltage > setpoints from VF, VT in mpc.dcline? Are the MVAR limits QMINF, QMAXF, > QMINT, QMAXT used in the outer loop when enforcing limits? > 2. What happens to the dummy gen on the from side, which has negative > P? I mean, I also read that dispatchable loads are implemented as > generators with negative injection, but that MATPOWER *automatically* > keeps their P/Q ratio fixed at the initially specified value. Does this > affect all generators with negative P? Does this only happen in OPF? > 3. Does toggle_dcline(mpc, 'on') have to be used when computing simple > powerflows too? > > > Regards, > > -- > Jose L. Marin > Gridquant España SL > Grupo AIA > > <http://www.gridquant.com/> > > >
