THREE-PHASE VOLTAGE INVERTER OF INCREASED POWER FOR SOLAR PHOTOVOLTAIC POWER PLANT Russian patent published in 2022 - IPC H02M7/48 

FIELD: converter equipment.

SUBSTANCE: invention relates to heavy-loaded converter equipment. In the known three-phase voltage inverter containing three one-phase inverter cells and control unit each of the cells is equipped with M-1 accessory transistor stands and with three M winding trans-filters, control unit is equipped with M-1 accessory sawtooth-voltage generators (SVG_i) (where i = 2, 3, 4, …, M) with phase change of their voltage, and also with 3(M-1) accessory comparators (C_i) and M-1 accessory logical units (LU); moreover, for each j phase one input of each of M-1 number of i accessory comparators is connected to output of one of i accessory SVG_i, their second input is connected to the output of three-phase driving voltage generator of phase j, and the output of i accessory comparator is connected to one input of i accessory two-input LU, the second input of which is connected to the correspondent output of voltage half-cycle duration sensor.

EFFECT: increasing the quality of output voltage and convertible power of three-phase voltage inverters in network solar photovoltaic power plants.

1 cl, 3 dwg