Self-commutated inverter and operation of same

The method as claimed in one of the preceding claims, wherein the target voltage space vector (μα,β_s) of the space vector modulation is formed as a function of filter output currents (i1_out, i2_out, i3_out) of the output filter (5).

A self-commutated inverter (1), which is supplied from a direct voltage circuit (3), the inverter (1) comprising

• electronic switches (S1, S2, S3) for generating a three-phase output voltage,
• a three-phase output filter (5) arranged downstream of the electronic switches (S1, S2, S3) and coupled to the direct voltage circuit (3), so that common mode portions of filter input currents (i1_in, i2_in, i3_in) of the output filter (5) can flow into the direct voltage circuit (3), and
• a control unit (7) which is designed to activate the electronic switches (S1, S2, S3) with a space vector modulation, with which filter output currents (i1_out, i2_out, i3_out) of the output filter (5) are controlled in a closed-loop manner and a zero-phase-sequence system voltage of filter input voltages of the output filter (5) is controlled in a closed-loop manner as a function of a target voltage space vector (μα,β_s) of the space vector modulation and the filter input currents (i1_in, i2_in, i3_in) of the output filter (5) so that oscillations in a zero-phase-sequence system of the filter input currents (i1_in, i2_in, i3_in) are suppressed.