THREE-PHASE ACTIVE RECTIFIER Russian patent published in 2012 - IPC H02M7/217 

FIELD: electricity.

SUBSTANCE: invention relates to power conversion equipment and may be used to supply to DC electric drives, in composition of frequency converters for supply of AC electric drives, in systems of DC power supply, in power rectifying plants supplied from sources of electric energy of limited capacity. A three-phase active rectifier comprising a unit of power valves assembled in accordance with a three-phase bridge circuit, a sensor of rectified voltage and a control system, at the input it is equipped with sensors of input phase currents, and a control system is equipped with a calculator of non-observed coordinates of an electric drive, with two DC sources, a multiplication unit, a linear controller of rectified voltage, relay controllers of active and reactive energy, a detector of a phase spectrum and a unit to select a voltage vector.

EFFECT: invention provides for power coefficient of a rectifier equal to one, simplified and increased reliability of a rectifier.

2 cl, 3 dwg