REACTIVE POWER SOURCE Russian patent published in 2008 - IPC H01F29/14 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, particularly to high-voltage controlled electrical hardware and can be incorporated with the high-voltage circuits rated to 110 to 750 kV for reactive power compensation and voltage stabilisation. The reactive power source (RPS) comprises a three-phase magnetisation-controlled reactor with six cores each accommodating a circuit winding connected in the high-voltage circuit and a control winding, a three-phase capacitor bank made up of two sections and connected to the mains, and the 5^th and 7^th harmonics filter connected to the control winding. It also contains a controlled rectifier with its output connected to the control windings and an automatic control system. The invention novelty consists in that the second additional controlled rectifier, the main and additional three-phase transformer supplying the said rectifiers are introduced into the reactive power source. The reactor control winding of every of the six cores is made up of three parts, the said parts being integrated into three open dual triangles and connected to the controlled rectifier output and to the rectifier supply transformer with the aforesaid 5^th and 7^th harmonics filters. The proposed circuit arrangement allows supplying the rectifiers with symmetric three-phase voltage from the control windings and, at the same time, simplifying rectifier design proceeding from the fact that the rectifiers potential is in fact the ground potential not that of the control winding high potential.

EFFECT: expanded performances and higher reliability.

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