Software Patches

November 1, 2019

Features and Improvements

  • Transient Stability: Added the reading of USRMDL model SVSMO1U1 which is read as an SVSMO1 model.
  • Transient Stability: Added the reading of USRMDL model SVSMO1U2 which is read as an SVSMO1 model.
  • Transient Stability: Added the reading of USRMDL model SVSMO2U2 which is read as an SVSMO2 model.
  • Transient Stability: Added ability to read the SVSMO1T2 model from a DYR file which is read as an SVSMO1.
  • Transient Stability: Added ability to read the SVSMO2T2 model from a DYR file which is read as an SVSMO2.
  • Transient Stability: Added a new CHSVCT dynamic model for switched shunts.
  • Bug Fixes

    • File Formats: When reading an Areva RASMOM file, an access violation could occur if encountering an unknown TRIGCON GATE field. This has been fixed so than an error message is produced instead.
    • Power Flow Solution: Improved transformer tap switching consistency after a failed solution.
    • Transient Stability: Fixed duplicate event messages that could appear saying that the loss-of-field relay portion of a GP3 model can not be used with a GENCLS model.
    • Transient Stability: Modified to read USRMDL IEEEG1CDU and convert to a IEEEG1D model.
    • Transient Stability: Correctly normalizing the PrefInput into WTGTRQ_A_WTTQA1_PTI, if it has a Plant Controller, and if it is just an initialized constant.
    • Transient Stability: An access violation could result if creating a Measurement Object without an associated object. This has been fixed.