{
  "$type": "site.standard.document",
  "description": "Some aspects of the present disclosure provide a harmonic reduce control system for controlling an inverter, including a phase-locked loop controller, a voltage sum loop controller, a repeative controller, a current loop controller, and a harmonic obtaining module. The harmonic obtaining module…",
  "path": "/patents/1375509",
  "publishedAt": "2025-05-15T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J3/01",
    "SANTAK ELECTRONIC (SHENZHEN) CO., LTD."
  ],
  "textContent": "Some aspects of the present disclosure provide a harmonic reduce control system for controlling an inverter, including a phase-locked loop controller, a voltage sum loop controller, a repeative controller, a current loop controller, and a harmonic obtaining module. The harmonic obtaining module detects a harmonic value of a load current. The control system generates an inverter current reference value based on a first current value output by the voltage sum loop controller and the harmonic value, calculates a real-time frequency value based on a voltage of the power grid, obtains, through calculation, a repeative controller output value based on the inverter current reference value, the inverter output current, and the real-time frequency value, and outputs a first duty cycle based on the repeative controller output value. The control system limits the inverter output current based on the first duty cycle.",
  "title": "HARMONIC REDUCE SYSTEM AND UNINTERRUPTIBLE POWER SUPPLY INCLUDING SAME"
}