Hello,
We are starting to use matpower in a electrical power distribution
system, so we configure a small case with 118 branches and 80 buses.
To determine the optimal configuration we programmed a search algorithm
with PF (not OPF). In that algorithm we set the transformer's TAP to one
of the following values: 0.95;0.975;1;1.025, 1,05. (The relation of our
transformer is 15kV/0.4kV).
We have a problem when more than 70% of our transformers have
TAPS=0.95, PF algorithms give us a "no convergence".
But if we modify the BASE_KV field and we set the relation of
transformer in 15kV/0.42kV we have not got problems (with the taps in 1)
Can you help us with this problem?
Thanks.
Fernando ron