Features and Improvements
- Auxiliary Files (SCRIPT and DATA Sections): Added new script command CalculateTapSense(filtername); The filtername can be empty meaning to do calculation for all transformers. Otherwise it can be a filter string for a Branch object using the same syntax as all other script commands.
- Case Information Displays: adding InjectionGroup fields for MWMaxA, MWMaxB, MWMaxC, MWMaxD, MWMinA, MWMinB, MWMinC, MWMinD and also MWMaxPercentA, etc. The Min/Max fields are enterable fields stored with the case. The Percentage fields show the percentage of the given limit. We expect the MWMax fields to be positive numbers and the MWMin to be negative numbers (for a load limit), but this is not enforced.
- Case Information Displays: Added ability to easily export TPWStringGrid results into shapefiles as long as they have geographic information. It is now available in the right-click menu, Geographic Data Views submenu; the two commands (Save Selected Objects in Shapefile or Save All Objects in ShapeFile) are at the end of the submenu. Data is exported as geographic points, with the exception that Regions are exported as polygons.
- Power Flow Solution: Added additional voltage preprocessing to the AC power flow solution to look for groups of buses connected by low impedance branches and then see if the buses within that group have very different per unit voltages. We can then choose a better initial voltage for this grouping which reduced the initial mismatch if available.
- Transient Stability: Added support to read and write the Bus model REPC_D to PSLF dyd format.
- Transient Stability: Added a new Transient Stability option to set how the relay will only scale/affect the load trips and the dist gen connected to a load. The options are to affect 1) Only Load MW and MVAR, or 2) Dist Gen and Load MW and MVAR. It is a new radio group in the Load Modeling Options. Currently the dist gen in the load were not affected by the load relay or scaling of the loads. That is now changed, and the new option will handle that.
- Transient Stability: fixed error in reading the ESST1C, ESST5C, ESST6C, and ESST7C models from a DYD file. We added the SCLFlag recently to support PowerWorld implementation of allowing a choice where the SCL input occurs. This parameter is not in the DYD file however so we need to handle this.