{
  "$schema": "https://ps-wiki.github.io/schema/v1/term.schema.json",
  "id": "weighted-short-circuit-ratio",
  "title": "Weighted Short-Circuit Ratio",
  "description": "A metric that accounts for interactions between wind plants to better estimate system strength.",
  "language": "en",
  "tags": [
    "stability"
  ],
  "related": [
    "grid-strength",
    "stability",
    "short-circuit-ratio",
    "composite-short-circuit-ratio",
    "short-circuit-ratio-with-interaction-factors",
    "generalized-short-circuit-ratio"
  ],
  "breaking": false,
  "dates": {
    "created": "2025-11-29",
    "last_modified": "2025-11-29"
  },
  "authors": [
    {
      "name": "Jinning Wang",
      "url": "https://jinningwang.github.io"
    }
  ],
  "content": {
    "sections": [
      {
        "order": 1,
        "id": "definition-in-an-article",
        "title": "Definition in an Article",
        "type": "definition",
        "source_keys": [
          "zhang2014evaluating"
        ],
        "page": null,
        "body_md": "> 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:\n>\n> $ WSCR= \\frac{\\sum_{i}^{N} S_{SCMVA_i} \\cdot P_{RMW_i}}{\\left(\\sum_{i}^{N} P_{RMW_i}\\right)^2} $\n>\n> 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.\n"
      }
    ]
  }
}