Do you have a small (the smaller the better) example that exhibits this problem? It’s possible that convergence requires automatically updating the settings of other controls (like other transformer taps or something).
Thanks, Ray > On Aug 9, 2017, at 7:06 PM, Chenxi Lin <chenxi...@gmail.com> wrote: > > Hello, > > I wonder why non-zero phase angle in transformers connecting PQ buses usually > cause power flow not converge. However, if the transformer is connected to a > PV bus then PF is converged. For the same case, PSS/E or PowerWorld do not > have this issue. > > Thanks in advance, > Chenxi
