Mr. Acker:
The mathematical problem that is solved behind the scenes is simply
singular in light of such modeling detail. Any robust solver would
actually look for such occurences in the data and collapse the busbars
into a single one, and then, as a post-solution-processing strategy,
split the results. MATPOWER does not do such things yet automatically,
in part because there are assumptions about such situations that the
current system data model is not able to represent, and there is no
industry standard about it either.
Hendrik Acker wrote:
Hi Mr. Zimmerman,
I am wondering how I can represent ideally coupled busbars in
MATPOWER. In the UCTE Format they are represented by a branch with
zero impedance (R=0; X=0; B=0) but I cannot implement such a branch in
Matpower because the Matrix will become singular.
Do you have an idea how to work around this problem?
Best regards
M.sc. Hendrik Acker
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Technische Universität Kaiserslautern
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