{
  "$type": "site.standard.document",
  "description": "A method for detecting power oscillation in an electric power grid (102), wherein the method comprises: integrating (201a) a filtered signal (134) on a first interval (136a), the filtered signal (134) being associated with the electric power grid (102); based on the integration of the filtered…",
  "path": "/patents/1396121",
  "publishedAt": "2026-06-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01R19/04",
    "VESTAS WIND SYS AS [DK]"
  ],
  "textContent": "A method for detecting power oscillation in an electric power grid (102), wherein the method comprises: integrating (201a) a filtered signal (134) on a first interval (136a), the filtered signal (134) being associated with the electric power grid (102); based on the integration of the filtered signal (134) on the first interval (136a), determining (202a) a positive half-period area (A) of the filtered signal and a negative half-period area (B) of the filtered signal (134), one (A, B) of the positive half-period area (A) and negative half-period area (B) being immediately subsequent to the other one (A, B); and determining (203a) that a power oscillation in the electric power grid (102) is detected if the following two conditions are met:• a sum of the positive half-period area (A) of the filtered signal (134) and the negative half-period area (B) of the filtered signal (134) is below a first threshold; and• the absolute value of one (A, B) of the positive half-period area (A) and negative half-period area (B) is above a second threshold.",
  "title": "A METHOD FOR DETECTING POWER OSCILLATION IN AN ELECTRIC POWER GRID"
}