METHOD OF ELECTRIC POWER CONTROL AND ELECTRIC POWER CONTROL DEVICE Russian patent published in 2018 - IPC H02P27/08 H02P21/06 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering and can be used in electric power control devices in three-phase alternating current motors. Method for electric power control, comprising: a stage of current measurement; a stage of calculating a prescribed value; stage of functioning; a determination stage, which determines whether to change the work period, during which the operation phase is carried out, in order it will be longer than one cycle of the carrier wave; the first stage of suppressing on which the operation of switching elements in the first half-cycle of the carrier wave is suppress, starting from the initial moment of the work period after the change, during which the carrier wave changes monotonically; a comparison stage, on which the slope of the carrier wave during the intermediate period between the first half-cycle of the carrier wave and the last half-cycle of the carrier wave during the work period of after the change to compare the carrier wave with the prescribed value of filling by magnitude, wherein in the comparison stage, a switching operation of the switching elements is performed according to the result of the comparison; and the second stage of suppression, on which the switching operation of the switching elements in the last half cycle of the carrier wave is suppressed.

EFFECT: technical result is higher accuracy of management.

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