Bug Fixes
- Auxiliary Files (SCRIPT and DATA Sections): Several variablenames for Sim_Environment_Options used to specify auxiliary files to load when cases are opened were confusing. AutoLoadAUXAnyCaseNotUse and AutoLoadAUXAnyCase were used for files loaded with only the present case. AutoLoadAUXThisCaseUse and AutoLoadAUXThisCase were used for files loaded with any case. New variablenames have been added to clear up this confusion. AutoLoadAUXCaseNotUse and AutoLoadAUXCase are now used for aux files loaded with the present case, and AutoLoadAUXCasesAllUse and AutoLoadAUXCasesAll are used for an aux files loaded with any case. The old variablenames are still supported so that old auxiliary files will set the options that have always been set, but the new variablenames will be used for any new auxiliary files saved from Simulator.
- Auxiliary Files (SCRIPT and DATA Sections): In the Sim_Environment_Options, the names of auxiliary files to load with the present case or any case can now be cleared out by loading an auxiliary files with these options having blank entries.
- Available Transfer Capability (ATC) Tool: When changing the definition of TransferDirection objects, the multiple Directions ATC results are now deleted for modified directions
- Contingency Analysis: When closing or bypassing a branch and then solving a power flow solution, special preprocessing Simulator calls angle smoothing is done to improve power flow convergence. This preprocessing was not working properly when closing or bypassing a branch and at the same time opening all branches in parallel with the branch being closed. This has been fixed so that the preprocessing works properly and power flow solution convergence is achieved.
- File Formats: Fixed an access violation error that could occur under very specific conditions after opening a PWB file that had been saved using Integrated Topology Processing's Save Consolidated Case feature. There needed to be
1. Two Switched Shunt objects labels as an SVC that were at different buses
2. These two buses needed to become consolidated as part of integrated topology processing into the same bus as each other
3. Then the case needed to be saved as a Consolidated case.
Under these situations the resulting PWB would have a problem in it which may not be noticed until the user closed the PWB file after opening it again. This would cause an access violation. - Power Flow Solution: When closing or bypassing a branch and then solving a power flow solution, special preprocessing Simulator calls angle smoothing is done to improve power flow convergence. This preprocessing was not working properly when closing or bypassing a branch and at the same time opening all branches in parallel with the branch being closed. This has been fixed so that the preprocessing works properly and power flow solution convergence is achieved.
- Transient Stability: Fixed a bug with Measurement Objects in transient Stability. There was an access violation if the object that was measured is removed/deleted from the case. Now, no access violation will result.