Two-stage electric generator system

Details Two-stage electric generator system Two-stage electric generator system

1980-04-02

1981-09-29

Truhe, J. V.

Prime-mover dynamo plants

Multiple-armature dynamo

310165, 310190, H02P 904, H02K 1912

Patent

active

042925320

ABSTRACT:
The system described herein is particularly adapted to convert mechanical energy from a wind or hydraulic driven turbine into electric energy and comprises: an exciter generator and a main generator in a housing traversed by a rotatable shaft; the exciter generator consists of permanent magnet mounted to the housing envelope and of a rotor mounted to the shaft and having a one-phase winding, the rotor being made of non-magnetic material to eliminate cogging and static torque associated with permanent magnet excitation; the main generator consists of a three-phase stator winding on a magnetic core mounted to the housing envelope and of a pole-type rotor mounted to the shaft, the rotor having a winding wound on a magnetic core; a rectifying bridge is rotatably mounted to the shaft and is connected to the one-phase winding of the rotor of the exciter generator and to the winding of the main generator rotor so that the rotation of the shaft as a result of mechanical energy generates a three-phase electric energy output from the stator winding.

REFERENCES:
patent: 3356877 (1967-12-01), Burr
patent: 3444410 (1967-03-01), Crawford

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