{
  "$type": "site.standard.document",
  "description": "A power system includes a photovoltaic cell panel, a first power conversion device converting the DC power from the photovoltaic cell panel into AC power, and outputting the AC power to an electric power grid, a DC-side switch device provided between the photovoltaic cell panel and the first power…",
  "path": "/patents/1303768",
  "publishedAt": "2021-11-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J3/32",
    "TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION"
  ],
  "textContent": "A power system includes a photovoltaic cell panel, a first power conversion device converting the DC power from the photovoltaic cell panel into AC power, and outputting the AC power to an electric power grid, a DC-side switch device provided between the photovoltaic cell panel and the first power conversion device and opening upon a trouble, a storage battery, and a second power conversion device connected to a connection point between the photovoltaic cell panel and the DC-side switch device and controlling charging and discharging of the storage battery. The second power conversion device includes a normal charging control mode for charging the storage battery based on a command signal from the system host monitor. Disconnection charging control mode may be executed when the DC voltage of the connection point exceeds a predetermined threshold value even if the command signal does not instructs the normal charging control mode.",
  "title": "POWER SYSTEM"
}