DEVICE FOR PROVIDING PARALLEL OPERATION OF INVERTERS Russian patent published in 2011 - IPC G05F1/613 H02M7/493 H02M7/5381 

FIELD: electricity.

SUBSTANCE: device for providing parallel operation of independent inverters includes the first and the second independent inverters, single-phase-three-phase transformer with rotary magnetic field with four primary windings and one three-phase secondary winding, the first and the second phase-shifting capacitors, control system containing pulse shaper, master saw-tooth voltage generator and distributing device. Input of transformer-rectifier unit is connected to load, and its output is connected to the first input of pulse shaper the second input of which is connected to the output of master saw-tooth voltage generator. Output of pulse shaper is connected to the input of distributing device, the first and the second outputs of which are the outputs of control system.

EFFECT: voltage stabilisation at parallel operation of single-phase independent inverters to three-phase load.

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