Software Patches

March 31, 2020

Bug Fixes

  • Auxiliary Files (SCRIPT and DATA Sections): The AutoInsertBuses script command has a couple of fixes. The MapProjection parameter should take "xy" instead of "x,y" as input. The last parameter FileCoordinates, which was intended to indicate if an input file list values in x,y or lon, lat, is redunant due to the MapProjection field and is no longer required. Including this parameter will not cause an error but it will be ignored and shound not be included with new auxiliary files
  • Transient Stability: Fixed a bug in reading a WECC switch file that could result in an access violation.
  • Transient Stability: When a 2 terminal DCline has either the rectifier or inverter AC bus disconnected from the rest of the AC system, then in the steady state power flow the DC line is considered out of service. This is true even if the DC line is set to be on power or current control because obviously it can't be on if the AC system is dead. This worked fine in the steady state power flow, however in the transient stability system if the DC line was set to be on power or current control and the AC system to which it was connected was dead there were errors resulting in undefined power flow mismatches at the terminals of the DC line (even though those terminals were disconnected). This has been fixed.
  • User Interface Dialogs: Closing the Run Mode Line Dialog could take a very long time on large cases. This has been fixed.