Software Patches

December 9, 2013

Features and Improvements

  • Auxiliary Files (SCRIPT and DATA Sections): Added script command ConditionVoltagesOnRadialBuses(VoltageThreshold, AngleThreshold, FilterName). The goal of this script command is to find groups of radial buses that may have bad initial voltage estimates and to get a better voltage estimate of these buses based on assuming that the voltages on buses outside of the radial group are good. These radial groups are determined by finding branches that would cause islands AND the voltage difference (absolute value) across the branch is greater than the VoltageThreshold in pu OR the angle difference (absolute value) across the branch is greater than the AngleThreshold in degrees, thus identifying parts of the system that have large voltage or angle differences. The FilterName is optional and determines which branches will be examined. If not specified all branches are considered.
  • Bug Fixes

    • Case Information Displays: In the generator table, clicking on the Fuel Type field should allow a dropdown that shows all of the fuel type options and allows changing them. This was not working if a generator status was Open. This has been fixed.
    • File Formats: Modified reading UCTE node records. If type = 2 or 3, a generator will be created regardless of other input. The automatically created generator will be set to operate at 0 MW and 0 Mvar.