DEVICE TO COMPENSATE HIGH HARMONICS AND CORRECT GRID POWER RATIO Russian patent published in 2014 - IPC H02J3/00 H02J3/02 H02J3/16 

FIELD: electricity.

SUBSTANCE: device comprises an inverter, an accumulating capacitor, an output smoothening passive filter, and a control system controller, at the same time the control system controller is equipped with a grid current sensor, voltage sensor, pulse shaper on the basis of relay controllers with variable width of hysteresis, phase converters of current and voltage, a unit of phase synchronisation and a controller of accumulating capacitor voltage, control drivers for inverter power-circuit keys; the device is equipped with grid current phase converter, reference current phase converter and voltage-shaping unit.

EFFECT: reducing coefficient of distortion for sinusoidal current curves and line voltage in presence of non-linear load which mode is connected to dynamic change of consumed non-sinusoidal current; increasing power factor of the grid as per the main component.

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