AUTONOMOUS VOLTAGE INVERTER CONTROL METHOD Russian patent published in 2018 - IPC H02M7/497 H02M7/521 H02M7/527 

FIELD: electrical engineering.

SUBSTANCE: invention can be used to control autonomous voltage inverters (AVI), it may be used in electrical installations for controlling single-phase and three-phase bridge autonomous voltage inverters. Method for controlling the autonomous voltage inverter is based on integrating the difference signal between the reference signal for the phase voltage of the autonomous voltage inverter and the corresponding pulse feedback signal of the phase voltage of the autonomous voltage inverter, comparing the integrated difference signal with two threshold levels, resulting in the formation of a forward and an inverse pulse train key management of half-bridge of the autonomous voltage inverter; a third harmonic signal with an amplitude equal to 1/4.5 of the amplitude of the sinusoidal reference signal for the phase voltage of the autonomous voltage inverter is preliminarily inputted into the sinusoidal reference signal for the phase voltage of the autonomous voltage inverter.

EFFECT: technical result consists in expanding the linear range of the amplitude control of the first harmonic of the phase voltage of the autonomous voltage inverter.

1 cl, 6 dwg