METHOD FOR CONTROLLING THE POWER OF A STATIC REACTIVE POWER COMPENSATOR OPERATING IN A SINUSOIDAL ALTERNATING VOLTAGE NETWORK Russian patent published in 2023 - IPC H02J3/16 

FIELD: electrical engineering.

SUBSTANCE: used in power networks in transverse compensation devices for controlling reactive power in a power transmission line (PTL) in order to reduce electrical power losses and regulate voltage at the installation sites of these devices in PTL. A method for controlling the power of a static reactive power compensator operating in a sinusoidal alternating voltage network and containing a series connection of a reactive element and a control device, using setting the value generated by the static reactive power compensator, measuring the voltage at the input terminals of the static reactive power compensator, calculating and setting the required effective value voltage applied to the reactive element, synchronization of the control of the voltage change on the reactive element with the voltage at the input terminals of the static reactive power compensator, characterized in that the control device consists of an AC sinusoidal voltage regulator, connected by its output terminals with a bidirectional thyristor switch to the output terminals of the device, and when the reactive power level of the static compensator changes, control pulses are removed from the bidirectional of the thyristor switch and the previously set control from the control device, maintain a pause for the recovery time of the locking properties of the bidirectional thyristor switch and set a new control for the bidirectional thyristor switch and the AC voltage regulator at the moment the voltage at the reactive power compensator terminals passes through zero, taking into account the signs of the voltages at the compensator terminals reactive power and reactive element.

EFFECT: increasing of the speed, by reducing the pause time, and the reliability of operation, by limiting current surges, when switching power levels of the static reactive power compensator and increasing the efficiency due to the use of residual power in the capacitor.

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