{
  "$type": "site.standard.document",
  "description": "An object of the present invention is to provide a Wind Turbine Generation System that eliminates the necessity of switching to a circuit different from the one used during a normal power generation operation even when Power grid voltage sags. To accomplish the above object, the Wind Turbine…",
  "path": "/patents/967049",
  "publishedAt": "2014-11-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F03D80/82",
    "HITACHI LTD [JP]"
  ],
  "textContent": "An object of the present invention is to provide a Wind Turbine Generation System that eliminates the necessity of switching to a circuit different from the one used during a normal power generation operation even when Power grid voltage sags. To accomplish the above object, the Wind Turbine Generation System according to the present invention includes a wind turbine having blades rotating upon receipt of wind, a rotor connected to the blades, and a permanent magnet generator connected to the rotor, the permanent magnet generator generating electric power by rotating a rotator having a permanent magnet in accordance with the rotation of the rotor; auxiliary machinery and a wind turbine controller that control the wind turbine; a power converter that adjusts the electric power generated by the permanent magnet and supplies the adjusted electric power to the auxiliary machinery and to the wind turbine controller; a DC converter that is connected to the permanent magnet generator to convert AC power to DC power; and a control device that is connected to the DC converter to control the power converter by using the DC power obtained from conversion.",
  "title": "WIND POWER GENERATING SYSTEM"
}