Dear All, I attached a simple 6 bus network in the above. It is a very well known test network in the realm of reliability studies.
I would like to know why when I increase the load and generation up to a certain point, the DCOPF sometimes converges , sometimes do not. Take for example, generation and load increase by 1.9 times do not converge. However, increment by 2.3 times converges. In both cases, the network is under perfect conditions. Why is this case? A simple testing algorithm: Yours sincerely, Jiashen Teh PhD Student Electrical Energy & Power Systems Group, School of Electrical & Electronic Engineering Ferranti Building (B18), The University of Manchester, M13 9PL, United Kingdom Tel: +44 (0) 161 306 2263; Mobile: +44 (0) 792 322 4864
SixBus.m
Description: SixBus.m
opt = mpoption('VERBOSE',0,'OUT_ALL',0);
count = 1; a = [1;1.1;1.3;1.5;1.7;1.9;2.1;2.3;2.5;2.7];
for increment = 1:length(a)
mpc = loadcase('SixBus');
mpc.gen(1:2,9) = mpc.gen(1:2,9)*a(increment);
mpc.gen(3:7,10) = mpc.gen(3:7,10)*a(increment);
result = rundcopf(mpc);
recordConvergence(count,1) = result.success;
recordWindFarmGen(count,1) = result.gen(1,9)-result.gen(1,2);
recordLoadloss(count,1) =
sum(abs(result.gen(3:7,10))-abs(result.gen(3:7,2)));
count = count + 1;
end
