Features and Improvements
- Contingency Analysis Tool: Two fields were added for Custom Monitors in Contingency Analysis -- Min Value Ctg Name and Max Value Ctg Name, which show the name of the contingency corresponding to the Min Value Cont. and Max Value Cont. respectively.
- Contingency Analysis Tool: For contingency actions that perform InjectionGroup Set/Change MW values by opening generation or load, a single WhatOccurredDuringContingency entry for the InjectionGroup is created indicating how must generation or load has been tripped and the MW Effect if relevant. This patch adds additional WhatOccurredDuringContingency entries listing the specific generator and loads and how much each has changed the MW injection. This doesn't impact the solution, but adds additional useful reporting.
- Data Checks: Could get a "duplicates not allowed" error when trying to open the Data Check tool. This has been fixed.
- General: Regions: provided option to use a much faster way to save the boundary points in aux files. Improved the region form performance with larger boundary point sets.
- Transient Stability: Added a new transient option called "Allow Creation on Dialog of Faults which Calculate Effect Impedance from Sequence Networks (Not Recommended)". The use of this option is not recommended. When choosing it, you will be able to create fault actions that calculate the effective impedance from the sequence networks. We do not recommend this because most of our users running transient stability do not have sequence network information available and instead make use of features such as applying a given fault impedance or applying a fault to achieve a per unit voltage.
- Auxiliary Files (SCRIPT and DATA Sections): Fixed a bug in the code for reading three winding transformers from an Auxiliary file. We were getting an access violation when a three winding transformer was read that was considered new, but had a duplicate star bus listed as an existing three winding transformer. This requires us to create a new star bus and that was causing an access violation in Simulator. This is now fixed.
- Available Transfer Capability (ATC) Tool: When using one of the iterated ATC methods and the source and sink are injection groups, participation factors will remain constant throughout the analysis even if participation factors are set to be auto calculated. The assumption is they should only be auto-calculated once at the start of running the ATC.
- Data Checks: Could get a "duplicates not allowed" error when trying to open the Data Check tool. This has been fixed.