THREE PHASE VOLTAGE GENERATOR Russian patent published in 2006 - IPC G05F1/20 

FIELD: electrical engineering, namely stabilizers of AC voltage, possibly used in electric power supply systems for stabilizing three phase voltage of AC power sources.

SUBSTANCE: stabilizer includes three phase transformer 1, terminals 1, 2, 3 for connecting primary windings of transformer to three phase AC power source. Each secondary winding includes three branches 5, 8, 11 of lead terminals of windings, mean terminals 6, 9, 12 and back terminals 7,10,13 of secondary windings. Lead terminals 5, 8, 11 are connected one to other and to first inlet of power source 17. Mean terminals 6, 9, 12 and back terminals 7, 10, 13 of secondary windings are connected through voltage stabilizing units 14, 15, 16 with terminals 18, 19, 20 for connecting load of stabilizer. Outlet terminals of power source 17 are connected with voltage stabilizing units 14, 15, 16. Each voltage stabilizing unit includes first and second opto-symistors 21, 22; null-organ 23; saw tooth voltage generator 24; comparator 25; first and second pulse shapers 26, 27.

EFFECT: enhanced operational reliability and efficiency of three phase voltage stabilizer.

2 dwg