Software Patches

April 26, 2022

Features and Improvements

  • Auxiliary Files (SCRIPT and DATA Sections): Allow the SolvePowerFlow script command to be specified with empty parentheses and no parameters. This will use all of the default parameters the same as specifying the command without parentheses. This also allows the SolMethod to be specified as a blank string.
  • File Formats: Previously PowerWorld would write cmpldw model defined in PowerWorld at an aggregation level such as Bus, Load Model Group, Area, Zone, or Owner, we would always write out cmpldw models for individual load objects because this is the only thing that the DYD file supported. The DYD file now supports writing out a special "_cmpldw" model for load model groups, areas, zones, and owners, so we will write out these special "_cmpldw" models to DYD files.
  • Bug Fixes

    • Power Flow Solution: For cases with bad input data such that generators at the same bus have different voltage setpoints, PowerWorld would just take the last generator's setpoint value. This has been modified so it will take the setpoint of the generator with the largest (MvarMax - MvarMin) value instead.
    • Transient Stability: In Result Analyzer when the end user end time is greater than the available time in the results it was getting more modes because it was assuming the time step was the end time the user selected. This is now corrected and only the data points until the available data end time is used.