FIELD: electrical engineering.
SUBSTANCE: proposed device is connected in parallel to power supply and to three-phase load. Device has power inverter containing three-phase transformer, autonomous voltage inverters unit and reactive power source. Device also has control system which has active and reactive power computing unit, active and reactive variable component computing unit, unit for computing preset values of phase currents, reactive power source milking unit and preset voltage source. Active and reactive power variable components computing unit is formed by two units. Each of these units has integrator connected in parallel to outputs of adder. Inputs of each unit have to be inputs of integrator and outputs of each unit have to be outputs of adder. Proposed device provides compensation of reactive power due to reduction basic frequency power signal to zero in variable components of active and reactive power.
EFFECT: complete compensation of reactive power.
1 dwg
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