the library Matpower works perfectly with small wind farms (30 wind
turbines with
3 mw each, the turbines are represented as PQnode with P=3MW and Q=0MVAR
and i have one slack bus in the terrestrial network)
but when I tried to make an example of a larger farm such as Borsselle
Park (100 wind turbines of 8 mw each) I had a divergence of the system.
"Newton's method power flow did not converge in 10 iterations ",
I looked on the internet and I found that in this case we have to do a
continuation power flow that gradually increases the loading/generation
like this:
{define_constants;
mpcbase = loadcase ('casefile');
mpcbase.bus (:, PD) = 0;
mpcbase.bus (:, QD) = 0;
mpcbase.gen (:, PG) = 0;
mpctarget = loadcase ('casefile');
results = runcpf (mpcbase, mpctarget);
results.cpf.max_lam}
If the resulting value of results is greater than 1, it indicates that the
load for the box is greater than that of the loading and unloading system
at least by a factor of results.cpf.max_lam to get a convergent power flow
solution.
I tried this and actually I found that it shows that results.cpf.max_lam
is less than 1 so i must reduce the loads to 1.35 mw for each turbine.
in my case i don't need to reduce the loads, i must found the losses of
the network with 8mw for each turbine.
I've tried many solutions that i found in matpower page but until now I
have not found the right solution to calculate with 8 mw.
So can you help me please on that, I 'll be so grateful if you answer me.
Best regards,
