{
  "$type": "site.standard.document",
  "description": "A method for discharging a capacitor of an input or output circuit arrangement of an inverter for supplying current to a power supply grid is disclosed. The method includes determining a supply voltage at connections of the input or output circuit arrangement, determining a DC link voltage of a DC…",
  "path": "/patents/1274209",
  "publishedAt": "2020-10-08T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02M1/32",
    "SMA Solar Technology AG"
  ],
  "textContent": "A method for discharging a capacitor of an input or output circuit arrangement of an inverter for supplying current to a power supply grid is disclosed. The method includes determining a supply voltage at connections of the input or output circuit arrangement, determining a DC link voltage of a DC link capacitor of the inverter; and calculating an upper limit voltage value of the DC link capacitor based on the measured supply voltage and the measured DC link voltage. The method also includes operating an input-side DC/DC converter or an output-side bridge arrangement of the inverter such that energy from the capacitor of the input or output circuit arrangement is transferred to the DC link capacitor, wherein the voltage across the DC link capacitor is monitored; and ending the method if the voltage across the DC link capacitor exceeds the upper limit voltage value. Otherwise the method continues to transfer energy from the capacitor of the input or output circuit arrangement to the DC link capacitor until the capacitor is discharged to or below a lower limit voltage value.",
  "title": "METHOD FOR CAPACITOR DISCHARGING FOR AN INVERTER ASSEMBLY"
}