Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2011-04-19
2011-04-19
Leung, Quyen (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S180000, C310S06800R, C310S06800R, C310S06800R, C310S06800R, C310S06800R, C310S06800R, C310S201000
Reexamination Certificate
active
07928623
ABSTRACT:
An apparatus for producing electrical power from mechanical power, includes a generator with a rotor and a stator for conversion of mechanical power to a polyphase alternating current having more than three phases. The stator has a stator core with a cylindrical stator bore and a plurality of parallel stator slots disposed at a distance from one another, extending axially along a length of the stator core and being open towards the stator bore. A plurality of stator winding bars are disposed in the stator slots so as to form delta-connected windings for producing the polyphase alternating current. A static frequency converter in the form of a matrix converter converts the polyphase alternating current to a desired output alternating current, wherein the stator is a polygonal stator having external winding connections that are bridged, wherein inputs to the matrix converter are connected to end connections of the winding bars. For k stator slots and for a polyphase output with m phases, every k/m-th end connection of the winding bars or evolvent is connected, forming one phase of the polyphase stator output.
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Decision Regarding the Issue of the Letters Patent for Application No. 2007140306/09(044116). Feb. 26, 2009.
Decision Regarding the Issue of the Letters Patent for Application No. 2007140306/09(044116). Feb. 26, 2009.
Alstom Technology Ltd
Kim John K
Leung Quyen
Leydig , Voit & Mayer, Ltd.
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