{
  "$type": "site.standard.document",
  "description": "A method and system (130) for dissipating energy in a direct current (dc) bus (137) of a doubly-fed induction generator (DFIG) converter during a grid event is described. In one aspect, the method comprises monitoring operating conditions of an electrical system, the electrical system comprising at…",
  "path": "/patents/977482",
  "publishedAt": "2014-03-12T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F03D7/0244",
    "GEN ELECTRIC [US]"
  ],
  "textContent": "A method and system (130) for dissipating energy in a direct current (dc) bus (137) of a doubly-fed induction generator (DFIG) converter during a grid event is described. In one aspect, the method comprises monitoring operating conditions of an electrical system, the electrical system comprising at least a DFIG generator and a line side converter (136) and a rotor side converter (134) connected by a dc bus (137) having a dynamic brake (142) connected thereto; detecting an overvoltage on the dc bus (137) or a condition indicative of an overvoltage on the dc link is detected, the overvoltage on the dc bus (137) or condition indicative of the overvoltage caused by a grid event; and causing energy in the dc link to be dissipated using the dynamic brake (142).",
  "title": "Method and systems for operating a wind turbine using dynamic braking in response to a grid event"
}