Software Patches

February 16, 2015

Features and Improvements

  • Auxiliary Files (SCRIPT and DATA Sections): OpenWithBreakers and CloseWithBreakers script commands now allow the specification of any branch device type that can be switched in the SwitchingDeviceTypes parameter.
  • Auxiliary Files (SCRIPT and DATA Sections): The SendToExcel script command now allows an optional parameter SortFieldList to specify the order in which the fields should be sent to Excel. The script command parameters are now SendToExcel(objecttype,[fieldlist],filter,UseColumnHeaders,"workbookname","worksheetname",[SortFieldList]).
  • File Formats: Added the Simulator software version number and build date to a comment at the top of an exported PTI RAW file.
  • General: The number of limits that can be defined with branches has been increased to 15.
  • Bug Fixes

    • Contingency Analysis: The Text File Report Writing option could produce an error. This has been fixed.
    • Contingency Analysis: Fixed a bug when using the iterated linear CTG method and the Amount of a line rating change is specified using a model expression or field. These values were not being used correctly during the iterations.
    • Contingency Analysis: Fixed a bug when changing the rating of a line with one of the DC methods and setting the Limit Set line percentage to something other than 100%.
    • Sensitivity Calculations: The TLR sensitivities on interfaces containing phase shifters while using the Lossless DC with Phase Shifters option might not calculate the correct results. This has been fixed.
    • Sensitivity Calculations: When using DC method for TLR calculations, DC options for ignoring r or g, ignoring transformer impedance correction tables, and ignoring phase shift angle effects were not properly being included when doing a calculation on a line. This has been fixed.
    • Transient Stability: During a transient stability run hitting the Pause button and changing the simulation End Time could result in the simulation staying paused even after it was started again. This has been fixed.
    • Transient Stability: In Transient stability models REEC_A and REEC_B, fixed bugs when pasting from Excel into a case information display.
    • Transient Stability: Modified REEC_A and REEC_B record to have additional choices for the PQFlag parameter. Previously only choice 0 and 1 where available. Additional choices 2 and 3 were added. The choices are now: 0 = Q priority and Ipmin=0; 1 = P priority and Ipmin=0; 2 = Q priority and Ipmin=-Ipmax; 3 = P Priority and Ipmin=-Ipmax.
    • Transient Stability: Modified the transient contingency event so when you choose to "Set or change PRef", the following precedence is now followed (1) Use Plant Control model that accepts a Pref signal such as REPC_A, (2) Use a Pref controller such as WTGTRQ_A, (3) Use an exciter such as REEC_A, (4) use the Governor model. Previously the exciter was missing so REEC_A could not have it's Pref changed by a contingency action.