FIELD: electricity.
SUBSTANCE: invention relates to the field of electric engineering and may be used in the industry to control AC motor. System of energy delivery and method of its actuation includes multiple power supply elements, which are electrically connected to machine and multiple windings, comprising one or more primary windings and multiple secondary windings, so that each element is electrically connected to one of secondary windings, and multiple secondary windings are shifted by phase relative to primary windings. Method includes detection of shift angle for carrier for each element in set of power supply elements, and synchronisation, by each element in set of carrier signal with secondary voltage for element on the basis of carrier angle shift detected for the element. Carrier signal for each element controls timing of switching instruments operation in each element.
EFFECT: reduced harmonics developed by operation of power supply element, having bidirectional switching instruments.
24 cl, 8 dwg
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