{
  "$type": "site.standard.document",
  "description": "A wind powered turbine (3) with low voltage ride-through capability. An inverter (28) is connected to the output of a turbine generator. The generator output is conditioned by the inverter resulting in an output voltage and current at a frequency and phase angle appropriate for transmission to a…",
  "path": "/patents/1075219",
  "publishedAt": "2005-08-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F03D7/0224",
    "CLIPPER WINDPOWER TECHNOLOGY [US]"
  ],
  "textContent": "A wind powered turbine (3) with low voltage ride-through capability. An inverter (28) is connected to the output of a turbine generator. The generator output is conditioned by the inverter resulting in an output voltage and current at a frequency and phase angle appropriate for transmission to a three-phase utility grid. A frequency and phase angle sensor is connected to the utility grid operative during a fault on the grid. A control system is connected to the sensor and to the inverter. The control system output is a current command signal enabling the inverter to put out a current waveform, which is of the same phase and frequency as detected by the sensor. The control system synthesizes current waveform templates for all three-phases based on a sensed voltage on one phase and transmits currents to all three-phases of the electrical system based on the synthesized current waveforms.",
  "title": "Generator with utility fault ride-through capability"
}