{
  "$type": "site.standard.document",
  "description": "A thermal-power power electronic direct-hung energy-storage plant backup power system includes a thermal-power grid connection startup/standby unit, a power electronic energy-storage switching unit and a thermal-power plant unit. The thermal-power grid connection startup/standby unit is connected…",
  "path": "/patents/1375311",
  "publishedAt": "2025-05-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J9/062",
    "Xi'an Thermal Power Research Institute Co., Ltd"
  ],
  "textContent": "A thermal-power power electronic direct-hung energy-storage plant backup power system includes a thermal-power grid connection startup/standby unit, a power electronic energy-storage switching unit and a thermal-power plant unit. The thermal-power grid connection startup/standby unit is connected to the power electronic energy-storage switching unit and the thermal-power plant unit, respectively. The power electronic energy-storage switching unit is connected to the thermal-power plant unit. The power electronic energy-storage switching unit includes: an energy-storage device, an energy-storage device converting apparatus, an energy-storage device isolation switch, an energy-storage Power Electronic Transformer (PET) low-voltage Alternating Current-Direct Current (AC-DC) converter, an energy-storage PET low-voltage side filter capacitor, an energy-storage PET high-frequency DC-DC transformer, an energy-storage PET high-voltage side filter capacitor, an energy-storage PET high-voltage DC-AC converter, an energy-storage grid connection switch, a low-voltage standby energy-storage power supply busbar, and a high-voltage standby energy-storage power supply busbar.",
  "title": "Thermal-Power Direct-Hung Energy-Storage Frequency Modulation Plant Backup Power System"
}