{
  "$type": "site.standard.document",
  "description": "Included are a power converter 2 for driving an induction machine 1, a control unit 40 for controlling the power converter 2, and a brake force command computing unit 6 for computing a brake force command. The control unit 40 includes a regenerative brake force computing unit 12. The regenerative…",
  "path": "/patents/997163",
  "publishedAt": "2012-10-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L15/007",
    "MITSUBISHI ELECTRIC CORP [JP]"
  ],
  "textContent": "Included are a power converter 2 for driving an induction machine 1, a control unit 40 for controlling the power converter 2, and a brake force command computing unit 6 for computing a brake force command. The control unit 40 includes a regenerative brake force computing unit 12. The regenerative brake force computing unit 12 computes a first regenerative brake force BP1 that can be determined based on a d-axis current detected value id, a q-axis current detected value iq, a d-axis voltage command Vd*, a q-axis voltage command Vq*, and speed information É and also computes a second regenerative brake force BP2 that can be determined based on phase current information Iu to Iw, the d-axis voltage command Vd*, the q-axis voltage command Vq*, and the speed information É, and then selects any one of the first regenerative brake force BP1 and the second regenerative brake force BP2 according to the speed information É and outputs the selected one to the brake force command computing unit 6.",
  "title": "POWER CONVERSION DEVICE"
}