{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
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    "mimeType": "image/png",
    "size": 106107
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  "description": "Provided is a power conversion device that does not require adaptation work and can suppress a current beat regardless of an operation state of a motor. The power conversion device includes an inverter that converts a DC voltage into an AC voltage and drives an AC motor and beat compensation units…",
  "path": "/patents/1321740",
  "publishedAt": "2022-06-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02P27/08",
    "HITACHI ASTEMO, LTD."
  ],
  "textContent": "Provided is a power conversion device that does not require adaptation work and can suppress a current beat regardless of an operation state of a motor. The power conversion device includes an inverter that converts a DC voltage into an AC voltage and drives an AC motor and beat compensation units and that suppress a current beat component of an output current of the inverter The beat compensation units and include beat extraction units and that calculate beat components of the output current of the inverter and beat compensation voltage calculation units and that estimate beat compensation voltages from the beat components calculated by the beat extraction units and The current beat component of the output current of the inverter is suppressed based on the beat compensation voltages estimated by the beat compensation voltage calculation units and",
  "title": "POWER CONVERSION DEVICE AND MOTOR VEHICLE SYSTEM INCLUDING THE SAME"
}