Software Patches

April 20, 2011

Features and Improvements

  • Transient Stability: Added full support for the WT4E wind turbine "exciter"
  • Bug Fixes

    • Case Information Displays: Fixed error displaying min and max tap on the transformer bases for transformers with a fixed tap on the From bus
    • Contingency Analysis: In the contingency solution where the line-drop compensation was used to change a generator to regulate its terminal, if the next contingency involved the closure of a line near a generator whose regulated bus was changed then the angle smoothing routine may cause the power flow solution to be pushed toward an incorrect (low voltage) solution. This has been fixed.
    • Time Step Simulation: Fixed some problems with plotting and displaying custom results for Owners, Zones, Loads, Transformers, and Super Areas.