Electricity: single generator systems – Generator control – With armature or primary circuit control
Reexamination Certificate
2011-06-14
2011-06-14
Cuevas, Pedro J (Department: 2839)
Electricity: single generator systems
Generator control
With armature or primary circuit control
C318S459000, C318S801000, C320S137000, C310S162000
Reexamination Certificate
active
07960948
ABSTRACT:
An exemplary power system may include an electric machine with multiple sets of stator windings, each set of windings being coupled through a separate switch matrix to a common voltage bus, and each of which may be spatially arranged in full pitch around the stator such that stator flux harmonics are substantially reduced. The reduced stator flux harmonics may be associated with phase current harmonic content. In an example application, such power systems may operate in a generating mode to transfer mechanical energy to electrical energy on a DC voltage bus. In some illustrative embodiments, the power system may provide both high-power and high-speed (e.g., 1 MW at 8000 rpm or above) motoring and/or generating capability suitable, for example, for on-board (e.g., marine, aviation, traction) power systems.
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Ahmad Raed H.
Pan Zhiguo
Saban Daniel M.
Cuevas Pedro J
Direct Drive Systems, Inc.
Fish & Richardson P.C.
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