Udo Schmitz

**Question:** In the PGM load flow calculation, only PQ nodes (load or feed-in nodes) can currently be defined. Will this issue make it possible to define PV nodes, i.e., generator...

Do you mean that you will never implement PV nodes in PGM?

**Question:** What type of Phase Shift Transformers are addressed with this issue? asymmetric PSTs? symmetric PSTs? **Question:** Can the angle of the additional voltage be varied: 30, 60, 90 degrees?

Another aspect would be to completely suppress grossly incorrect measurements in the estimation by adjusting the weight. Bad data can already be detected after the third iteration by evaluating the...

Hi. I have now created a PI model Transformer in my fork. However, when implementing the asymmetric part, I stuck to the formulation of the transformer (i.e. r_grounding_from, x_grounding_from,.r_grounding_to, x_rounding_to)....

Hi Tony (@petersalemink95), this means you prefer to define the input parameters in this way: r0_series / r1_series / r2_series x0_series / x1_series / x2_series g0_shunt / g1_shunt / g2_shunt...

confussing, i just added it the following way: ```c++ explicit GenericBranch(GenericBranchInput const& genericbranch_input, double u1_rated, double u2_rated) : Branch{genericbranch_input}, sn_{genericbranch_input.sn}, r1_{genericbranch_input.r1}, x1_{genericbranch_input.x1}, g1_{genericbranch_input.g1}, b1_{genericbranch_input.b1}, ratio_{is_nan(genericbranch_input.ratio) ? 1.0 : genericbranch_input.ratio}, shift_{is_nan(genericbranch_input.shift)...

Oh I see, theta0 and theta2 is missing, also I have to rename shift and ratio....

Hi Peter, thanx to your answer. I see the problem in the transformer class for asymetrical calculation for the different winding types. For the moment my implementation looks like this:...

maybe the user could give an optional type parameter for the asymetrical calculation?