{
  "$type": "site.standard.document",
  "description": "The invention relates to a method for controlling a wind turbine of the type including a rotor, a generator, a frequency converter, a control unit and means for connecting to a wind farm grid, using means for receiving a local voltage reference value (VREF) and a regulator (1) which calculates the…",
  "path": "/patents/1013408",
  "publishedAt": "2011-05-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F03D9/00",
    "ACCIONA WINDPOWER SA [ES]"
  ],
  "textContent": "The invention relates to a method for controlling a wind turbine of the type including a rotor, a generator, a frequency converter, a control unit and means for connecting to a wind farm grid, using means for receiving a local voltage reference value (VREF) and a regulator (1) which calculates the reactive power to be generated (QT) as a function of the voltage error (?V), such that it can be operated over the entire voltage range. The system also includes: at least one saturator element (2, 6, 7) in which the reactive power to be generated is limited, whereby the limits (Q_MAX, Q_MIN, QC_MAX, QC_MIN, QS_MAX, QS_MIN) are calculated dynamically as a function of the voltage, this block outputting a reference reactive power of the wind turbine (Q_REF, QC_REF, Qs_REF); and an element (3) for calculating the actual limit of the active power (PMAX) as a function of the pre-limited reactive power (Q_REF, QS_REF) and the apparent power available at that moment.",
  "title": "WIND TURBINE CONTROL METHOD"
}