{
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  "description": "Embodiments of this application disclose a method and apparatus for suppressing a cross current in an inverter parallel system, and relate to the field of power supply, to suppress a cross current in an inverter parallel system and improve reliability of inverter components. A specific solution…",
  "path": "/patents/1397080",
  "publishedAt": "2025-09-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02M1/123",
    "HUAWEI DIGITAL POWER TECH CO LTD [CN]"
  ],
  "textContent": "Embodiments of this application disclose a method and apparatus for suppressing a cross current in an inverter parallel system, and relate to the field of power supply, to suppress a cross current in an inverter parallel system and improve reliability of inverter components. A specific solution includes: obtaining a common-mode current and a common-mode injection voltage of each inverter in an inverter parallel system; determining a virtual damping voltage of each inverter based on the common-mode current of each inverter and a preset common-mode damping factor, where if a direction in which a current flows out of the inverter is a positive direction, the preset common-mode damping factor is a negative value, or if a direction in which a current flows into the inverter is a positive direction, the preset common-mode damping factor is a positive value; superimposing the virtual damping voltage on the common-mode injection voltage of each inverter, to obtain a target common-mode voltage of each inverter; and controlling operation of each inverter based on the target common-mode voltage of each inverter and a differential mode voltage of each inverter.",
  "title": "METHOD AND APPARATUS FOR SUPPRESSION A CROSS CURRENT IN INVERTER PARALLEL SYSTEM"
}