Dear all, I trying to run a lf on a MV network. I treat all the transformers as simple branch. If I use the whole case file the load flow doesn't converge, instead if I remove the first branch, that is the HV/MV transformer, and put the slack bus on bus 2 (MV busbar of the substation), the load flow converge. Also if I decrease the transformer impedance of 10 the load flow does converge. The transformer is a 25 MVA machine with a short circuit voltage of 14,6% circa. The case file is attached if someone want to check.
mpc.mat
Description: application/matlab-workspace
