THREE-PHASE VOLTAGE STABILIZER Russian patent published in 2005 - IPC

FIELD: electric engineering.

SUBSTANCE: device in each between grid and load has secondary winding of transformer, while said winding consists of two semi-windings, average point of which is connected to appropriate phase of grid, and remaining outputs are connected to load through fully controlled two-direction keys, and primary winding consisting of two semi-windings and two fully controlled one-direction keys form up two-clock high-frequency inverter and rectifier, while operation of said keys in secondary windings is synchronized with operation of said keys in primary winding in such a way that in case of fall of grid phase voltage below given level voltage of secondary winding was added to grid voltage and respectively vice versa, and value of increase was determined by displacement between operation of said keys in primary winding and keys in secondary windings.

EFFECT: lower weight, lesser dimensions.

3 dwg