{
  "$type": "site.standard.document",
  "description": "A propulsion control device executing propulsion control of an electric vehicle by using DC power supplied from each converter is connected to each converter as a load. A carrier phase table 22, in which, when load states of propulsion control devices capable of being determined to be equivalent to…",
  "path": "/patents/968459",
  "publishedAt": "2014-10-22T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L1/003",
    "MITSUBISHI ELECTRIC CORP [JP]"
  ],
  "textContent": "A propulsion control device executing propulsion control of an electric vehicle by using DC power supplied from each converter is connected to each converter as a load. A carrier phase table 22, in which, when load states of propulsion control devices capable of being determined to be equivalent to each other are grouped in a same group, setting values of phase angles in the same group are given for each group, is provided in a phase-angle determination unit 15 providing a desired phase angle between signal wave and carrier wave. The phase-angle determination unit 15 refers to the carrier phase table 22 based on a load state signal 25 indicating a load state of each propulsion control device and an own-vehicle ID signal 21, determines a phase angle provided to each converter, and outputs it to a PWM control unit. The PWM control unit changes a phase angle of the carrier wave based on the phase angle determined by the phase-angle determination unit 15.",
  "title": "ELECTRIC POWER CONVERSION DEVICE"
}