| 摘要 |
A permanent magnet alternator (PMA) includes a stator which rotates with a propeller shaft and a rotor which is mounted within the stator and rotates with a gas turbine engine output shaft. The rotor is driven at the relatively high speed of the turbine output shaft while the stator is driven at a relatively slow speed of the propeller shaft as reduced by an in-line gearbox. The great difference in speed between the propeller shaft and the turbine output shaft results in a compact PMA which provides significant electrical power output. As the stator of the PMA rotates with the propeller shaft, power is supplied directly to the rotating hub and blades without the heretofore necessary slip ring and associated electrical transmission components.
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