Features and Improvements
- Case Information Displays: Modified a Region so that calculated fields of Bus, Gen, Load, Shunt, Branch, etc... will work on a Region
- Case Information Displays: Modified a Region so that it can be used as Device Filter on other object types and also use advanced filters of Regions on other objects.
- Case Information Displays: Modified Region objects so they can belong to ObjectGroups. This way a user can create an ObjectGroup of Regions and use this as a device filter to choose things.
- Oneline Diagrams: Modified oneline object linking to the existing case to accomodate FixedNumBus methods of identifying Gens, Loads, Shunts, Branches, DCLines and MSLine. This was generally supported already for creating new onelines, but when loading an old oneline made on a case that did not include the full topology it was not correctly linking when loading into a case which did contain the full topology.
- Power Flow Solution: The March 12 patch introduced a feature to find problems in RAW file solutions related to FixedNumBus groupings with a mixed status (some buses are connected and others are disconnected). PowerWorld will automatically close in branches to connect generator, load or shunt objects at dead buses that the RAW file solution showed injecting power into the system. This patch ensures that the initial voltage guess for these newly closed in buses is equal to the bus to which these buses are being connnected. Normally Simulator would do this automatically previously, but sometimes when opening the RAW file while in Edit Mode it was not.
- Transient Stability: When exporting transient stability data in the DYD file format, the "_cmpldw" composite load model associated with a PSLF load group (load zone, area, zone, owner) was missing the initial four parameters PMin, PQMin, VMin, kVThresh. This has now been corrected. This change does not impact the exporting of "cmpldw" composite load model associated with an individual PSLF loads that are identified by the bus number and id.