METHOD FOR CONVERSION CIRCUIT CONTROL AND DEVICE FOR REALISATION OF THIS METHOD Russian patent published in 2014 - IPC H02M7/493 H02M7/53846 H02M7/53862 

FIELD: electricity.

SUBSTANCE: invention is attributed to the field of electric engineering and can be used for conversion circuit control. According to the control method the conversion circuit contains partial conversion systems (1), (2) of inductance (L1, L2); each partial conversion system (1, 2) contains at least one two-pole commutation cell (3) and it contains two in-series controlled bidirectional power semiconductor switches with controlled one-directional passage of current and capacitive storage. Power semiconductor switches of commutation cells (3) in the first and second partial conversion system (1) are controlled by control signals (S1) and (S2) respectively. In order to calculate capacitive storage for power of the conversion circuit notwithstanding current required at output of the conversion circuit, i.e. from its frequency, control signal (S1) is shaped of voltage fluctuation signal (V_L) at inductances (L1, L2) and commutation function (α₁). Additional control signal (S2) is shaped of voltage fluctuation signal (V_L) at inductances (L1, L2) and commutation function (α₂). Commutation functions (α₁, α₂) are shaped by signal (V_A) of voltage fluctuations (V_u) at the output (A) and selected reference signal (V_ref).

EFFECT: maintaining voltage ripple at low level.