THREE-PHASE INVERTER, COMPOSED OF THREE SINGLE PHASE INVERTERS Russian patent published in 2018 - IPC H02M7/42 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering and can be used as a three-phase inverter with increased power with improved output voltage quality. Inverter contains functionally connected power terminals, a capacitive filter, three single-phase bridge inverters, each of which contains a control circuit and a power module, an output transformer comprising a core, a primary three-phase winding and a secondary three-phase winding that are trapezoidal, the primary winding phases are connected to the respective power modules of the inverters, and the phases of the secondary winding are connected to the terminals for connecting the load. Improved output voltage of the inverter is provided by the design and parameters of the trapezoidal windings.

EFFECT: technical result consists in increase in the output voltage quality.

1 cl, 4 dwg