Software Patches

November 21, 2016

Features and Improvements

  • Auxiliary Files (SCRIPT and DATA Sections): Added optional parameter to CalculateTLR script command. The new parameter, AbortOnError, allows the user to disable the error message, which would interrupt a series of script commands. To disable the error, set AbortOnError = NO. If AbortOnError is NO, then the error message is printed to the log, but the command does not fail.
  • Contingency Analysis Tool: Modified the Interface OPEN contingency action so that it also opens any generators or loads in the interface. Previously it only opened the monitored branches in the interface.
  • Bug Fixes

    • Transient Stability: When loading the REGCAU1 user-written model from a DYR file, modified so that the parameter Xe is always read as a zero. This is because it has been found that this parameter is not used in the user-written model so it should always be treated as a zero (0.0).
    • Transient Stability: Part of initializing a load which contains a distribution equivalent involves calculating shunt terms on the feeder branch as well as potentially including a shunt on the low side of the transformer. The dynamic load models are then placed at the end of the feeder branch. Later when choosing to OPEN a load Simulator was properly opening the dynamic load models, but was not opening the feeder and transformer of the distribution equivalent. This has been fixed.