{
  "$type": "site.standard.document",
  "description": "A direct-current coupling system and a charging control method therefor are provided. In the direct-current coupling system, an alternating-current side of an inverter is configured to connect a power grid, a direct-current side of the inverter is connected to at least one photovoltaic array and at…",
  "path": "/patents/1377525",
  "publishedAt": "2025-12-18T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J3/32",
    "Sungrow Power Supply Co., Ltd."
  ],
  "textContent": "A direct-current coupling system and a charging control method therefor are provided. In the direct-current coupling system, an alternating-current side of an inverter is configured to connect a power grid, a direct-current side of the inverter is connected to at least one photovoltaic array and at least one energy storage system through a direct-current bus, where the energy storage system includes a battery system and a DC/DC converter connected to the corresponding direct-current bus, so that the DC/DC converter can acquire energy from at least one of the inverter and the photovoltaic array during charging the battery system. The DC/DC converter acquires, in response to a power regulation demand at the alternating-current side, energy from the power grid through the inverter connected to the DC/DC converter during charging the battery system.",
  "title": "DIRECT-CURRENT COUPLING SYSTEM AND CHARGING CONTROL METHOD THEREFOR"
}