METHOD TO COMPENSATE HIGH HARMONICS AND CORRECTION OF GRID POWER RATIO Russian patent published in 2011 - IPC H02J3/18 

FIELD: electricity.

SUBSTANCE: method consists in generation of pulses of control of power keys of inverter with application of phase synchronisation of voltage and current of grid, processing of signals from sensors of voltage by phase converter to phase synchronisation of voltage and current. At the same time output signals from sensor of grid current arrive at the inlet of the first additional phase converter, output signals of which together with output signals of unit of phase synchronisation arrive at inlet of the second additional phase converter, output signals from which together with output signal of accumulating capacitor voltage controller and output signals of unit of phase synchronisation arrive at the inlet of unit of voltage shapers, output signals of which arrive to inlet of phase converter, output signals of which together with output signal of voltage controller of accumulating capacitor arrive at the inlet of unit of relay controllers.

EFFECT: reduction of coefficients of distortion of grid current and voltage harmonicity and increased power ratio.

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