DEVICE FOR CONNECTING STAND-ALONE VOLTAGE INVERTER TO DIRECT CURRENT VOLTAGE SOURCE Russian patent published in 2012 - IPC H02M7/521 H02M7/523 H02M7/797 

FIELD: electricity.

SUBSTANCE: device (1) for connecting stand-alone voltage inverter (2) to direct current voltage source (3) contains main components: reactor (4), input capacitor (5) of inverter, inverter input capacitor charge control unit (6), circuit (16) for limiting overvoltages in the form of damping circuit containing resistor (17) in parallel to which switch (18) is connected, and damping capacitor (19), as well as connected in series the first (26) and the second (27) diodes and electronic switch (29) connected in parallel to the second diode. In parallel to serial connection of the second diode (27) and reactor (4), switch (28) is included.

EFFECT: multiple reduction of inductance of electric circuit sections connecting inverter input capacitor outputs and outputs of contained in it electronic switches and bypass diodes shunting them, as well as voltage ripples at outputs of inverter solid-state power components and power losses in these components.

5 dwg