{
  "$type": "site.standard.document",
  "description": "A control device (10) for controlling a power source (20) connected to an alternating-current (AC) power system includes: a frequency control unit (201) that controls a frequency of the power source operating in a constant-voltage constant-frequency control scheme; a power calculation unit (203)…",
  "path": "/patents/1424285",
  "publishedAt": "2022-08-31T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J3/00142",
    "MITSUBISHI ELECTRIC CORP [JP]"
  ],
  "textContent": "A control device (10) for controlling a power source (20) connected to an alternating-current (AC) power system includes: a frequency control unit (201) that controls a frequency of the power source operating in a constant-voltage constant-frequency control scheme; a power calculation unit (203) that calculates, when the frequency control unit varies a frequency of the power source, a variation of an effective power output from the power source; an arithmetic unit (205) that calculates a frequency characteristics constant of the AC power system, based on a variation of the frequency of the power source and the variation of the effective power output from the power source; and a selection unit (207) that selects a control scheme for the power source, based on the frequency characteristics constant of the AC power system.",
  "title": "CONTROL DEVICE AND POWER CONTROL SYSTEM"
}