ENERGY-SAVING METHOD AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2020 - IPC H02J3/18 

FIELD: electrical equipment.

SUBSTANCE: field of application: electrical equipment. According to the method, the reactive elements are divided into two groups according to a functional feature: the first group of reactive elements at the initial stage of control is connected between the phase conductors and the common bus, wherein the reactive elements in it are switched in accordance with the reactive power compensation algorithm, after the control process completion, the reactive elements of this group are switched on according to the "star" scheme with the isolated neutral and are switched only by the "phase skew compensation" algorithm, at that control of the second group of reactive elements connected between phase conductors and neutral is controlled only by the algorithm of reactive power compensation. Device comprises first group of reactive elements (1), first group of switches (3), contactor (6), second group of reactive elements (7), second group of switches (9), control unit (11), reactive power meter (12), phase difference meter (13), first, second and third units of sensors (14, 15, 16), control signal generator (17), switch (18).

EFFECT: improved quality of current in the network due to faster operation of reactive power compensation processes and balancing of voltages under conditions of variable loads.

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