ROTARY-AND-VALVE-TYPE POWER SUPPLY OF OFF-LINE POWER SYSTEM Russian patent published in 2005 - IPC

FIELD: dc power systems using electromechanical power supplies for feeding miscellaneous off-line users.

SUBSTANCE: proposed device has stator with main and auxiliary windings, as well as rotor whose poles carry field coils and is characterized in that its main and auxiliary stator windings are spaced 90 electrical degrees apart, and also in that it incorporates newly introduced three-phase power rectifier and second three-phase rectifier; inputs of these rectifiers are connected to star-interconnected main and auxiliary stator windings; positive output of power rectifier is connected to first control input of control gear using digital control circuit whose second input is connected to common connection point of official outputs of mentioned rectifiers; positive and negative outputs of second rectifier are connected, respectively, to first and second power inputs of mentioned control gear; one lead of field coil is connected to first output of control gear, second output of mentioned field coil is connected to positive output of second rectifier, and resistive divider set up of series-connected initial-excitation and no-load running variable resistor and first limiting resistor is inserted between first and second outputs of control gear. In addition, description is given of particular design alternate of control gear using digital control circuit.

EFFECT: simplified design, enhanced reliability of device, improved characteristics of output voltage.

2 cl, 2 dwg