Software Patches

January 25, 2011

Bug Fixes

  • Auxiliary Files (SCRIPT and DATA Sections): When using the CaseDescriptionSet() script command to specify the case description, Simulator then sets the case description but includes the double quotes around the entire description. The double quotes are now removed.
  • Auxiliary Files (SCRIPT and DATA Sections): Fixed bug with CTGWriteResultsAndOptions script that would not read the options correctly if there was an extra space before the bracket enclosing the options.
  • File Formats: Fixed reading of the QTable from an EPC file.
  • File Formats: When writing out area/zone information for branches to the EPC file, if the EPC extra data is not available, we now write the area/zone to which Simulator will assign the line losses (as determined by the metered end of the branch)
  • File Formats: When loading the Areva hdbexport CSV file while Windows Localization settings were set to use a comma as the decimal separator, all values were read incorrectly. This has been fixed.
  • Optimal Power Flow (OPF): Fixed error when solving a DC OPF in that we were not resolving the power flow after modifying a MW transaction control variable. The DC Power flow is needed here even in the DC OPF because we need to redispatch the generation in the non-OPF area.
  • Power Flow Solution: When using the DC approximation, the flow on DC transmission lines was not being properly updated if the user changed the MW or Amp setpoint. This has been fixed.
  • Time Step Simulation: Fixed errors with applying schedule subscriptions when time points were left out of the schedule.
  • Transient Stability: Fixed error with writing out the WT4E1 model to a DYR file. The last 3 parameters were omitted and 3 integer parameters were written out as floating point numbers.
  • Transient Stability: Fixed error when switching between different dynamic models on the generator dialog. The number of decimal points shown for various values on the dialog were not always being updated appropriately.
  • User Interface Dialogs: When using the merge buses feature, the newly merged bus must have its angle set based on the old buses to prevent a badly conditioned initial voltage estimate.