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: > 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? > 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? > 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/>
