THREE-PHASE REACTIVE POWER COMPENSATOR Russian patent published in 2019 - IPC H02J3/16 

FIELD: electrical equipment.

SUBSTANCE: invention relates to the electrical equipment and is intended for the reactive power compensation and increasing the three-phase consumers power factor, in particular, industrial enterprises. Three-phase reactive power compensator contains the three-phase load, a control system, a three-phase voltage sensor, load and compensator currents sensors, a three-phase reactor, a three-phase autonomous voltage inverter, a reactive power source. Control system includes the Park direct conversion units, low-pass filters, the Park reverse conversion units, a PI regulator, three-phase subtractors, and the autonomous voltage inverter control unit. Supply network is represented by connected in series with the three-phase line generator, which has the actively inductive resistance nature.

EFFECT: technical result consists in achieving of the high power factor K_M due to the consumed currents (i_A, i_B, i_C) approximation to the sinusoidal form and their phases approximation to the supply voltage (u_A, u_B, u_C) – this, in turn, increases the power factor K_M due to increase in the cosϕ and the consumed current curve shape distortion factor.

1 cl, 1 dwg