Starter generator system with two stator exciter windings

F - Mech Eng,Light,Heat,Weapons – 02 – N

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Details

322/27, 310/65,

F02N 11/04 (2006.01) H02K 19/00 (2006.01) H02P 9/08 (2006.01)

Patent

CA 1280154

ABSTRACT OF THE DISCLOSURE A starter generator system is provided with a dynamoelectric machine having a stator and a rotor which is mounted for rotation with respect to the stator. The rotor carries a main field winding, an exciter armature winding and means for rectifying the output of the exciter armature winding to provide DC excitation for the main rotating field winding. A main armature winding is mounted on the stator and magnetically coupled to the main field winding. An exciter portion of the stator supports both a multiple phase AC exciter field winding and a distributed DC exciter field winding, both of which are mounted to be magnetically coupled to the exciter armature winding. A variable voltage, variable frequency power converter is capable of being alternatively connected to drive the dynamoelectric machine as a starting motor or to receive power from the machine during generator operation. During motor opera- tion, the AC exciter field winding receives power from an external power source, usually of constant voltage and constant frequency. During generator operation, DC power is supplied to the DC exciter field winding.

530256

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