{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "In switching of a microgrid from an isolated operation to an interconnected operation with a power grid, a CEMS server determines a first master DER and slaves based on a master plan and performs master-slave control. When the first master DER goes down, the CEMS server compares remaining…",
  "path": "/patents/1409062",
  "publishedAt": "2026-02-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G05F1/66",
    "TOYOTA MOTOR CO LTD [JP]"
  ],
  "textContent": "In switching of a microgrid from an isolated operation to an interconnected operation with a power grid, a CEMS server determines a first master DER and slaves based on a master plan and performs master-slave control. When the first master DER goes down, the CEMS server compares remaining capacities of power-storage-type DERs included in a DER group (S27). The CEMS server then determines a DER with the highest remaining capacity as a second master DER among the power-storage-type DERs included in the DER group (S29) and performs master-slave control (S31).",
  "title": "ELECTRIC POWER SYSTEM AND SERVER"
}