See Also
The Advanced LODF Calculation Dialog can be opened by clicking on the Advanced LODF Calculation button found on the Line Outage Distribution Factors (LODFs) dialog. The advanced calculation dialog allows you to calculate the LODFs for several different contingent lines in one batch process. First, you need to use the Contingency Analysis Tool to define which contingent lines to use (all contingencies that contain a single branch outage will be used.) Also, only lines that are being monitored will have their LODFs calculated. See Limit Monitoring Settings to change which lines are monitored.
The output from the advanced LODF calculation process is saved to a file for import into another program for analysis. This dialog defines how to save the Advanced LODF results to a file for importing in another program.
Format to Save in
You can choose to save the advanced LODF results as "Monitored Branch, Contingency" pairs for PROMOD, or as a matrix in a comma-delimited text file. The comma-delimited text file is useful for loading the results into a spreadsheet program.
Only save pairs with an LODF whose absolute value is greater than
This field allows you to filter out elements whose LODF is below a certain value.
Only Include Monitored Branches whose MW flow increases
This field allows you to filter out monitored elements whose MW flow did not increase in the LODF calculation.
Maximum Columns Per Text File
This field is important when you are saving a matrix in a comma-delimited text file. Most spreadsheet programs have limits on the number of columns they can display. The default is 256, which happens to be the maximum number of columns allowed in Excel.
LODF Number Format
You can choose to have the LODF values stored in either scientific notation, or as a specified length decimal number.
File Name
You must enter a file name and location or Browse for a file for saving the LODF data.
Include Contingencies Creating Islands Added in version 20, build on April, 27, 2018
LODF values cannot be calculated for contingencies that will cause a new island to be created. When including these contingencies in the results, the LODF will be reported as a very large number to indicate that these values were not actually calculated. If choosing to not include these contingencies in the results, these contingencies will be completely omitted from the results.