Fault tolerant generator or starter/generator with low torque ripple
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United States of America Patent
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Oct 18, 2011
Grant Date -
Jul 29, 2010
app pub date -
Jan 27, 2009
filing date -
Jan 27, 2009
priority date (Note) -
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Abstract
A fault tolerant generator apparatus includes subsystems isolated from each other, so that the generator may operate in a fault mode with low torque ripple. The apparatus comprises a machine and a power controller unit. In an embodiment, the machine has a plurality of electrical three phase windings and the power controller unit has a plurality of power converters. Each three phase winding of the machine is coupled to a separate corresponding power converter to form an operating subsystem. The operating subsystems are physically and electrically isolated from each other to provide fault tolerant operation of the apparatus. Accordingly, each of the operating subsystems is effective to provide a balanced electrical load for the machine.
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