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

FIELD: electricity.

SUBSTANCE: in high-voltage electric networks for compensation of reactive power and stabilisation of voltage. According to the method, three-phase magnetisation-controlled reactor is permanently connected to the mains, and in case voltage deviates from preset value three-phase sectional condenser battery is connected via breakers to the mains or disconnected from the mains. At that connection of every section of three-phase condenser battery is performed with simultaneous performance of the following conditions: U≤U_set and I≤I_min and t-t_n-1≥Δt, disconnection of every section of three-phase condenser battery is carried out with simultaneous performance of the following conditions: U≥U_set and I≥ I_max and t-t_n-1≥Δt, where U - mains voltage at the moment that precedes commutation of condenser battery section, U_set - preset mains voltage, I - reactor current at the moment that precedes commutation, I_min I_max - preset minimum and maximum reactor current, t - moment of commutation time, t_n-1 - moment of time of previous commutation, Δt - setting of commutation delay time.

EFFECT: improvement of mains voltage regulation quality and increase of substation equipment reliability.

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