Software Patches

June 4, 2021

Features and Improvements

  • Power Flow Solution: Continued improvements with handling switched shunt ranges voltage setpoints that may conflict with generator setpoints.
  • Bug Fixes

    • Oneline Diagrams: When showing the oneline option to show out-of-service elements as dashed lines, the symbols for a transformer and series cap/reactors were not showing as dashed. The line segments up until the symbol were dashed, but not the symbol. This has been fixed so that the symbol also appears as dashed.
    • Security Constrained OPF (SCOPF) Tool: Included two additional SCOPF options when saving the options to an AUX file: "Set Solution as Contingency Analysis Reference Case" and "Basecase Solution Method"
    • Transient Stability: Added exciter ESST1A_GE to be able to set a Hard Limit with the over excitation OEL1.
    • Transient Stability: UEL2C now allows parameter KUI = 0
    • User Interface Dialogs: Fixed a bug with the Switched Shunts dialog that when the shunt is an svsmo3 was showing the current pu values multiplied by the Sbase for the Continuous Range and the Switching Range. Now it will show the values in pu value of the current. A better caption was inserted for making explicitly that the Continuous Range and the Switching Range is in pu of the current.