CONTROL METHOD OF VOLTAGE INVERTER IN UNINTERRUPTED POWER SUPPLY SYSTEMS AND SYSTEMS OF ELECTRIC ENERGY ACCUMULATION AT SHARPLY ALTERNATING LOAD Russian patent published in 2019 - IPC H02M7/5395 H02J3/32 H02J9/06 H02P21/24 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering and power electronics, can be used in designing three-phase alternating current electric power generation systems or alternating current guaranteed power supply systems. In the voltage inverter control method in uninterruptible power systems and electric energy accumulation systems in case of sharply alternating load, real and imaginary instantaneous power in the load circuit is calculated, convert feedback signals based on real and imaginary instantaneous power of load using low-pass filters, generate a task for the rate of increase in real and imaginary instantaneous power of the power supply, calculate error value between signals by load power and setting power of power supply, generate signals for setting current in power supply circuit in two orthogonal projections, calculate error value between current feedback signals in load circuit and current setting signals in power supply circuit in two orthogonal projections, convert control signals of orthogonal projections into three simulating signals in time domain, generate a reference bipolar signal, generate pulses of control of voltage inverter valves at exceeding of modeling voltages above reference voltage.

EFFECT: increase of uninterruptible power supply, stabilization of the source loading level, reduction of the consumed power from the reactive power source due to application of the electric energy accumulator based on the voltage inverter and the storage battery.

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