Software Patches

September 2, 2026

Bug Fixes

  • Transient Stability: Fixed error in VAR1 and PF1 plant controller models. The equation for calculating the magnitute of Vadj should be
    Vadj = (VREFmax - VREFmin) / TSlew. The IEEE standard had the reciprocal which did not make sense.
  • Transient Stability: Fixed error in initializing state VR in DC4C model. We were not properly calculating the VB at intialization impacting the result.