FIELD: electricity.
SUBSTANCE: in the method for suppressing parasite inphase leakage current in a three-phase converter during the synthesis of vector pulse-width modulation for controlling the three-phase converter the circular frequency of the setting vector, equal to the power-line frequency ω, is specified, and the value of the setting vector module V* is formed by summing three adjacent forming vectors, whose modules are proportional to weight ratios, whose values are calculated depending on the modulation depth M and rotation angle of the setting vector θ, control pulses are formed according to the key state combinations, used adjacent forming vectors, the generated control pulses are supplied to the inputs of transistors of the three-phase converter, wherein when forming the module value of the setting vector, only forming vectors that allow to create inphase voltage with a value equal to half of the DC link voltage value at the phase outputs of the converter are used among all existing forming vectors.
EFFECT: creation of a method for suppressing the inphase leakage current in a three-phase converter in the implementation of vector pulse-width modulation, which allows to completely suppress the inphase current.
5 dwg, 1 tbl
