{
  "$type": "site.standard.document",
  "description": "A time-discrete pulse-width modulation control equipment for a voltage source converter, in particular a 3-level or a 2-level converter, has means (IREG) for generation of an AC-voltage reference template ( UV a R , UV b R , UV c R , UV €¾ abc R , UV €¾ ±² R ) for a voltage ( UV €¾ ) to be…",
  "path": "/patents/1091272",
  "publishedAt": "2003-12-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J3/36",
    "ABB AB [SE]"
  ],
  "textContent": "A time-discrete pulse-width modulation control equipment for a voltage source converter, in particular a 3-level or a 2-level converter, has means (IREG) for generation of an AC-voltage reference template ( UV a R , UV b R , UV c R , UV €¾ abc R , UV €¾ ±² R ) for a voltage ( UV €¾ ) to be generated by the converter. The control equipment has first means (48) for determination of a sample period time ( Ts ) in dependence on an input signal representative of a frequency. The control equipment comprises phase-locking means (47) for synchronising the sample instants and the reference voltage template so that for a 3-level converter the phase positions 0° and 180° of the reference voltage template each coincide with a sample instant, and for a 2-level converter the phase positions 0° and 180° of the reference voltage template each coincide with an instant in time corresponding to a sample instant that is displaced in time with half the sample period time.",
  "title": "CONTROL EQUIPMENT FOR A TIME DISCRETE PULSE WIDTH MODULATED VOLTAGE SOURCE CONVERTER, AND A METHOD FOR CONTROLLING THE SAME"
}