Method for actuating a frequency converter, wherein the method has the following steps: - measuring phase currents (831, 832, 833) flowing in phase conductors (531, 532, 533) of a three-phase system; - generating a first modulation space vector that is in phase with the phase current (831, 832, 833) and hence has an angle in sync with a system voltage of the three-phase system, and that has a stipulated modulation index as amplitude; - performing a Clarke transformation in order to transform the measured phase currents (831, 832, 833) into a second current space vector; - multiplying the second current space vector by a stipulated virtual resistance in order to obtain a second modulation space vector; - subtracting the second modulation space vector from the first modulation space vector in order to obtain a third modulation space vector; - modulating the frequency converter in accordance with the third modulation space vector, wherein the generating of the first modulation space vector comprises the following steps: - performing a Park transformation to use the angle in order to transform the measured phase current (831, 832, 833) into a first current space vector; - adjusting the angle such that a reactive current component of the first current space vector disappears, wherein the reactive current component of the first current space vector is multiplied by a quotient of the stipulated virtual resistance and the stipulated modulation index in order to obtain an angle difference, and the angle difference is supplied to a phase locked loop in order to adjust the angle; - generating the first modulation space vector, which has the angle and the stipulated modulation index as amplitude, by means of an inverse Park transformation. - measuring phase currents (831, 832, 833) flowing in phase conductors (531, 532, 533) of a three-phase system; - generating a first modulation space vector that is in phase with the phase current (831, 832, 833) and hence has an angle in sync with a system voltage of the three-phase system, and that has a stipulated modulation index as amplitude; - performing a Clarke transformation in order to transform the measured phase currents (831, 832, 833) into a second current space vector; - multiplying the second current space vector by a stipulated virtual resistance in order to obtain a second modulation space vector; - subtracting the second modulation space vector from the first modulation space vector in order to obtain a third modulation space vector; - modulating the frequency converter in accordance with the third modulation space vector, - performing a Park transformation to use the angle in order to transform the measured phase current (831, 832, 833) into a first current space vector; - adjusting the angle such that a reactive current component of the first current space vector disappears, wherein the reactive current component of the first current space vector is multiplied by a quotient of the stipulated virtual resistance and the stipulated modulation index in order to obtain an angle difference, and the angle difference is supplied to a phase locked loop in order to adjust the angle; - generating the first modulation space vector, which has the angle and the stipulated modulation index as amplitude, by means of an inverse Park transformation.