Software Patches

June 29, 2021

Features and Improvements

  • Power Flow Solution: Added option to "Use Loss Factor For DC Line tielines". This will use the two-terminal DC line aLoss term to assign the metered point a fraction of the way along a two-terminal DC line. This term was always maintained previously but not used in the solution. This feature is supported in EPC files but not RAW files. PowerWorld Simulator now has a global option regarding whether to use this Loss Factor. When not using the Loss Factor (aLoss) we will default back to the MeteredEnd specification instead.
  • Bug Fixes

    • Transient Stability: When reporting total load for the entire case in transient stability when load models include a distribution equivalent, the totals were not correct. They were correct for individual loads, areas, zones, substations, etc... but not for the entire case. This has been fixed.
    • Transient Stability: Fixed an access violation when Saving Data from the Show/Save Selected Plot Data option in the Plot Designer. The error was happening when the plot included a PlayIn Signal. It was preventing the data from been saved. This error was fixed.