Features and Improvements
- Transient Stability: Modified how the PERC1 and LDEV1 models initialize the value MvarInit when used as a stand-alone model. Previously the QPRatio was ignored for a stand-alone model, but this has now been changed so MvarInit = QPRatio * MWInit always for this model. With this change, any mismatch in Mvar between the initial condition Mvar will be made up by a internal parameter IqExtra that is calculated during initialization. See the help documentation on PERC1 and LDEV1 for more information.
- Security Constrained OPF (SCOPF) Tool: The input parameter in SCOPF for "Maximum Number of Contingency Violations Per Element" was being exceeded when deciding which interfaces violations to keep during the SCOPF, along with the same contingency-interface being duplicated in the list of SCOPF Contingency Violations list. This also had an impact on how the linear program solved, which led to poor dispatches in certain parts of the system. This has been corrected. Related to this, but not impacting the solution quality, the "Error" value reported for interfaces with a "negative" or lower limit, was displayed incorrectly. This has also been corrected.