BOOSTER DEVICE WITH INDEPENDENT THREE-CHANNEL OUTPUT AND TRANSFORMERLESS CONNECTION Russian patent published in 2025 - IPC H02M5/458 

FIELD: electrical engineering; electric power industry.

SUBSTANCE: invention relates to electrical engineering and power engineering and can be used in power supply systems of industrial enterprises, for social needs and autonomous power supply systems, for stabilization and regulation of voltage on power lines, control of throughput capacity and regulation of active and reactive power. Booster device with independent three-channel output and transformerless connection contains input three-phase rectifier, double active bridge, smoothing capacitors, output passive filters and an inverter, which is characterized by that for each phase there are three inverters with PWM modulation and three independent double active bridges with a common high-frequency inverter, and control of output constant voltage is carried out by means of block modulation by displacement of control meander of rectifier relative to control meander of inverter.

EFFECT: result achieved due to independent operation of each phase and rejection of booster transformers consists in improvement of quality of booster device operation with considerable reduction of volume and weight of the device.

1 cl, 1 dwg