{
  "$type": "site.standard.document",
  "description": "An energy storage system may comprise: a plurality of power converters configured to perform DC/DC conversion in connection with respective battery racks; a power conversion system (PCS) configured to perform power conversion between the power converters and a power grid; and a battery section…",
  "path": "/patents/1399333",
  "publishedAt": "2026-05-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01R19/16542",
    "LG ENERGY SOLUTION LTD [KR]"
  ],
  "textContent": "An energy storage system may comprise: a plurality of power converters configured to perform DC/DC conversion in connection with respective battery racks; a power conversion system (PCS) configured to perform power conversion between the power converters and a power grid; and a battery section controller interworking with the plurality of power converters and the power conversion system, wherein the battery section controller is configured to control a first power converter among the plurality of power converters to perform constant voltage (CV) mode control for maintaining a voltage of a DC link at a constant level, to check a state of a first battery rack to which the first power converter is connected, and to change a subject to perform the CV mode control for the DC link according to the state of the first battery rack.",
  "title": "ENERGY STORAGE SYSTEM AND CONTROL METHOD OF ENERGY STORAGE SYSTEM"
}