Hi - I want to model a 3-winding transformer having a generator on each
secondary.
I think I can simply model this as 3 branches using the "pair-wise"
impedance data from the transformer test report (). I labeled them below
to match my bus numbers.
For example, with the pair-wise data (on 100MVA) given below I would have
this model in MATPOWER:
%% branch data
% fbus tbus r x b
rateA rateB rateC ratio angle status angmin
angmax
1 2 0.01 0.10 0
0 0 0 1 0 1
0 0;
1 3 0.01 0.11 0
0 0 0 1 0 1
0 0;
2 3 0.04 0.76 0
0 0 0 1 0 1
0 0;
Questions:
A) Is that a correct way to model the three-winding transformer for
MATPOWER load flow?
B) How to you accommodate transformer winding arrangements (e.g. wye
vs. delta connected) in MATPOWER?
Best regards,
russ
