{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "This application provides a black start control method based on a plurality of converter subarrays and an apparatus. The method includes: sequentially performing working processes of a first voltage adjustment phase to an Nth voltage adjustment phase after controlling a control switch to be turned…",
  "path": "/patents/1393826",
  "publishedAt": "2025-08-13T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J3/001",
    "HUAWEI DIGITAL POWER TECH CO LTD [CN]"
  ],
  "textContent": "This application provides a black start control method based on a plurality of converter subarrays and an apparatus. The method includes: sequentially performing working processes of a first voltage adjustment phase to an Nth voltage adjustment phase after controlling a control switch to be turned on and controlling a converter in each converter subarray to be powered on; and in an nth voltage adjustment phase of the first voltage adjustment phase to the Nth voltage adjustment phase, synchronously sending an nth target voltage adjustment instruction to each converter subarray, to control each converter in the converter subarray to establish an nth target alternating voltage, so that the nth target alternating voltage is converted by a first transformer into an nth target bus alternating voltage input to a first alternating current bus. A process of establishing the rated voltage of the first alternating current bus is divided into a plurality of phases, to resolve a problem of a circulating current between subarrays and improve reliability of a black start on a power grid.",
  "title": "BLACK START CONTROL METHOD BASED ON A PLURALITY OF CONVERTER SUBARRAYS AND APPARATUS"
}