AC VOLTAGE REGULATOR IN THREE-PHASE NETWORK Russian patent published in 2021 - IPC H02J3/26 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering and electric power engineering, can be used in electric networks for regulation, stabilization, balancing and improvement of voltage quality at asymmetric loads of three-phase network. In alternating voltage regulator in three-phase network containing multi-wind booster transformer, which mains winding is connected to one of phases of network in series with controlled key and load, and secondary windings of which are connected to output terminals of semiconductor switch, voltage sensor and control unit, input terminals of semiconductor switch are connected to output winding of additional transformer, which input winding is connected to the second phase of the mains through serial connection with the secondary winding of the auxiliary transformer, and the primary winding of the auxiliary transformer is connected to the third phase of the mains.

EFFECT: technical result consists in expansion of functional capacity of AC sinusoidal voltage controller and improvement of voltage quality in phases of three-phase network at unbalance of electric loads connected to them.

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