{
  "$type": "site.standard.document",
  "description": "According to one embodiment, a photovoltaic generation system includes a direct-current power supply, which includes a photovoltaic 3 and a battery 4 to discharge a direct-current power to a converter 2, the converter 2 which supplies the converted power to a power system 1, a voltage detector 5…",
  "path": "/patents/993885",
  "publishedAt": "2013-01-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J3/40",
    "TOSHIBA KK [JP]"
  ],
  "textContent": "According to one embodiment, a photovoltaic generation system includes a direct-current power supply, which includes a photovoltaic 3 and a battery 4 to discharge a direct-current power to a converter 2, the converter 2 which supplies the converted power to a power system 1, a voltage detector 5 which detects a voltage at a connection point between the converter 2 and power system 1, a current detector 6 which detects a current output from the converter 2, an effective power detector 7 which detects effective power from a voltage value detected by the voltage detector 5 and a current value detected by the current detector 6, a rotor speed computation unit 10 which computes an angular frequency of the voltage output from the converter 2, based on an effective power value detected by the effective power detector 7, and an output target value of effective power, an electrical characteristics computation unit 21 which computes an output voltage target value of the converter 2, based on a current value detected by the current detector 6, and a set voltage value, and an angular frequency, and a power conversion controller 14 which controls the converter 2 according to the output voltage target value.",
  "title": "PHOTOVOLTAIC GENERATION SYSTEM AND POWER FEEDING SYSTEM"
}