Software Patches

October 13, 2021

Features and Improvements

  • Case Information Displays: Added columns to LoadModelGroup objects which show the LoadMW, LoadMvar, DistMW, DistMvar, DistMWMin, DistMWMax, LoadNetMW, and LoadNetMvar. These fields show the summation of these quantities across all the loads assigned to the LoadModelGroup.
  • Transient Stability: Added new exciter model ESURRY (from DYR) and exac1m (from DYD). These are the same exciter model and will be named ESURRY in PowerWorld Simulator, but when written out to a DYD file as an exac1m.
  • User Interface Dialogs: Modified so the General File Browsing form is not closed when someone opens a case using the form.
  • Bug Fixes

    • Contingency Analysis: Injection group contingency actions for Change By or Set To that are Persistent could cause excessive POSTCHECK iterations to occur when no changes are being made. This has been fixed.
    • File Formats: Modified how fault impedance is specified when loading a type of fault from an OTGD file
    • Transient Stability: Fixed a how parameter checks on values exceeding the maximum value allowed for the parameter was handled when validating data in transient stability.
    • User Interface Dialogs: Fixed a bug in the line length field where entering a value string that was not a properly formatted number would result in a weird value inserted in the field instead of resetting the field value back to the previous valid value, as it should have been.
    • User Interface Dialogs: Also modified the File Browser so that the Advanced Filter and Advanced Sort features work even when opening the File Browser dialog before open a case of any kind. Previously nuisance access violations could occur.