WSCR. It takes interactions between wind plants into account. The WSCR can better reflect the actual system strength when integrating a large amount of wind plants in a weak system.
Last Updated: November 29, 2025
Version: 1.0.0
Generated: December 04, 2025
Source:
To take into account the effect of interactions between wind plants and therefore to give a better estimate of the system strength, a more appropriate quantity is the weighted short circuit ratio (WSCR), defined by:
$ WSCR= \frac{\sum_{i}^{N} S_{SCMVA_i} \cdot P_{RMW_i}}{\left(\sum_{i}^{N} P_{RMW_i}\right)^2} $
Where $S_{SCMVA_i}$ is the short circuit capacity at bus $i$ before the connection of wind plant $i$ and $P_{RMW_i}$ is the MW rating of wind plant $i$ to be connected. $N$ is the number of wind plants fully interacting with each other and $i$ is the wind plant index.