FIELD: electricity.
SUBSTANCE: according to the method instantaneous values of three-phase mains are measured; selected harmonic components of the current are defined; phase-by-phase summation of harmonic components is made; correction current values are formed for each phase of line current which contains the selected harmonic components and having phase shift per 180 electric degrees and by means of respective current values delivery to each phase compensation of harmonic components for the line current is achieved.
EFFECT: improving quality of electric power due to elimination of harmonic components from the current line which are generated by non-linear load without use of auxiliary power filtering LC-circuits.
1 dwg
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