{
  "$type": "site.standard.document",
  "description": "The disclosed fault-ride-through and/or post fault active power recovery control method comprises the following steps: - detecting a voltage dip on a power line (4) transmitting electric power; - reducing the active current and/or active power that is fed by a power generating unit (2) at a feeding…",
  "path": "/patents/1001423",
  "publishedAt": "2012-06-13T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F03D7/04",
    "SIEMENS AG [DE]"
  ],
  "textContent": "The disclosed fault-ride-through and/or post fault active power recovery control method comprises the following steps: - detecting a voltage dip on a power line (4) transmitting electric power; - reducing the active current and/or active power that is fed by a power generating unit (2) at a feeding point into a power network having a plurality of power lines to a specific value, if a voltage dip is detected on the power line; and - when fault-ride-through is de-activated, the active power from the generating unit or plurality units is ramped back to an optimised post-fault power value which could be the pre-fault active value within a specific optimised time function. The specific value of the active current and/or active power depends from the properties of at least a part of the power network to which the power generating unit (2) is connected, and/or the specific value of the active current and/or active power depends from the number of power generating units (2) connected to the feeding point of the power network.",
  "title": "Fault-ride-through method, converter and power generating unit for a wind turbine"
}