yanda1234

> Is it possible that some branches have very small (or zero) reactance? That would cause singular matrix issues. Hi Dr. Zimmerman, Thanks for your reply. There were some zero...

Hi Dr. Zimmerman, Is matpower only able to handle psse 33, not psse 34 or 35? Best, Yanda

Yes, I spent several days trying to update matpower code, but then I realize there is a easy way, which is use psse to save case as previous version. Thanks,...

Hi Dr. Zimmerman, I found this part in psse_convert_xfmr.m file. It seems matpower regards reactance of delta-connected three-winding transformer to be impedance. I am curious of the reason. In addition,...

> > I found this part in psse_convert_xfmr.m file ... > > Please create a new issue for this question, and close this one unless the singular matrix issue has...