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Software Patches

February 18, 2016

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Features and Improvements

  • Oneline Diagrams: Added a dialog to show sparkline values.

    • Bug Fixes

    • Auxiliary Files (SCRIPT and DATA Sections): When reading an AUX file that had a CoreType, IsAuto, GICModelTypem, or GICManualCoirR value for a transformer which was blank, an error would occur. This has been fixed.
    • Case Information Displays: When showing a list of Area/Zone/Sub/BalancingAuthority that are contained in an Injection Group, if a Load/Gen/Shunt belongs to a different Area/Zone/Sub/BA than the terminal bus of the Load/Gen/Shunt then the Injection Group field would list the terminal bus' Area/Zone/Sub/BA as part of the injection group. This has been changed so that only the Area/Zone/Sub/BA directly assigned to the Load/Gen/Shunt is shown.
    • Case Information Displays: Added new fields for a LineShunt object to show the nominal MW and Mvar values. Previously you were required to edit these values using per unit values which is different than for the Switched Shunt records. THe nominal MW and MVar fields will now be the ones shown by default instead of the per unit values.
    • Case Information Displays: Fixed bug with editing the Line Shunt table values. Previous patch was causing any edited value of the G or B shunt value to be off by a factor of 100. This bug was introduced in February 8, 2016 patch and is now fixed.
    • Case Information Displays: Fixed an infinite loop that occurs when showing the Custom Case Information.
    • Contingency Analysis: When using distribtued computing, the summary timing information is not populated and any existing timing information is cleared.
    • File Formats: The options on the TLR form to Include on AGCable Generators, Include only online devices in Injection Group calculation, and determine whether or not to clear or append results are now stored in PWB files.
    • File Formats: Modified so that the normal status for branch objects is not stored with the "EPC File" fields for a branch. We now populate Simulator's normal status field directly when reading the EPC format and also write out Simulator's normal status field.
    • File Formats: When saving out an EPC file after having the case start as an AUX or RAW file, in the branch and transformer tables extra owner fields were being written. This has been fixed. This would NOT impact saving out an EPC file saved as a PWB and written back out as an EPC, so this bug effects very few people.
    • File Formats: When saving out an EPC file after having the case start as an AUX or RAW file, the generator record turbine type was not being properly written.
    • File Formats: Fixed error in writing out magnetizing reactance for three-winding transformer to EPC file. It was not being scaled properly by the MVABase of the primary-secondary winding.
    • General: Modified so that you can edit all the winding control information for secondary and tertiary windings from a three-winding transformer record.
    • General: Modified so that when changing the nominal tap of 3-winding transformers it updates the tap appropriately.
    • General: Added new switched shunt fields in ContinuousMvarNomMin, ContinuousMvarNomMax, SVCMvarNomMaxSH, SVCMvarNomMinSH, SVCMvarNomMaxSB, SVCMvarNomMaxSB which show previously existing values in units of Nominal Mvar instead of per unit.
    • General: Added Subnet as an secondary filter class for buses, generators, loads, switched shunts, branches, 3-winding transformers, dc lines, areas, zones, and injection groups.
    • Oneline Diagrams: Fixed a problem where the Selectable in Edit Mode field wasn't showing by default in the Screen Layers case information display.
    • Oneline Diagrams: Fixed bug caused by trying to select a sparkline style without an associated oneline when setting up a Geo Data View.
    • Optimal Power Flow (OPF): Modified so that after calculating an OPF solution, any out-of-service buses are automatically populated with prices equal to the closest in-service bus (measured by the number of nodes away). If multiple in-services buses are the same distance away, the average of the closest bus prices are used.
    • Optimal Power Flow (OPF): Fixed an access violation that could occur when running OPF.
    • Power Flow Solution: Fixed bug that could cause SVSMO1 and SVSMO2 switched shunts to move when they should not.
    • Transient Stability: Added a rate limiter check to governor model HYGOV4.
    • Transient Stability: When in the middle of editing a float or integer value on the plot designer AND then switching to a different part of the plot it was possible for the value you had been editing (for example the vertical axis maximum) to then propogate to the new part of the plot you were navigating too. This has been fixed.
    • Transient Stability: Fixed an infinite loop that occurred when showing the Transient Model Summary case information display.
    • Transient Stability: Added storing switched shunt Mvar injection in results.
    • User Interface Dialogs: Modified the Switched Shunt dialog to show the continuous element in units of Nominal Mvar instead of per unit.
    • User Interface Dialogs: Modified the Switched Shunt dialog to show the SVC values in Nominal Mvar instead of per unit.
    • User Interface Dialogs: Fixed infinite loop in the Area Dialog and interacting with the MW Transactions table.