Software Patches

January 24, 2017

Features and Improvements

  • Power Flow Solution: The automatic choice of a system slack bus presently prefers generators with a maximum MW of less than 5000 MW. This is so that fake generators are not chosen as a system slack bus. This has been modified so that we also prefer generators which do not have a negative Minimum MW as well.
  • Transient Stability: Added validation error message for the IEEEG1 model if the parameters K1+K2+K3+K4<=0. That input makes no sense.
  • Bug Fixes

    • Transient Stability: Fixed a bug with applying the option to "Fault Across to Achieve Voltage" to a BRANCH. It was instead taking the fault location as the PU voltage. Now it is corrected.
    • User Interface Dialogs: When choosing to Save Custom Settings on the Display/Column Options dialog when showing a User-Defined Case Information display grid, Simulator was storing the settings as a "DataGrid" objecttype when it should have been using a "UserDefinedDataGrid" objecttype. This has been fixed.