{
  "$type": "site.standard.document",
  "description": "The application provides a discharge method and device for a voltage sourced converter direct-current transmission line and a storage medium. The method comprises: unlocking a converter valve; generating an additional control signal by an additional controller and superimposing the additional…",
  "path": "/patents/1399937",
  "publishedAt": "2025-05-21T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J3/36",
    "NR ELECTRIC CO LTD [CN]"
  ],
  "textContent": "The application provides a discharge method and device for a voltage sourced converter direct-current transmission line and a storage medium. The method comprises: unlocking a converter valve; generating an additional control signal by an additional controller and superimposing the additional control signal on a reference voltage output by a main controller of the voltage sourced converter direct-current transmission system, so that the converter valve generates a harmonic current in a three-phase bridge arm of a converter; and when a direct-current transmission line voltage is lower than a voltage setting or an average voltage of normal operating submodules in the converter bridge arm is lower than a submodule operating voltage setting, locking the converter.",
  "title": "FLEXIBLE DIRECT-CURRENT TRANSMISSION LINE DISCHARGING METHOD AND APPARATUS, AND STORAGE MEDIUM"
}