| 摘要 |
<p>A rotary, permanent magnet, electrical generator has a stator in which a voltage is induced by a rotor having permanent magnet pole pieces arranged in two rows. An actuator can cause relative rotation of the rows of pole pieces to maintain a substantially constant output voltage from the stator. The actuator is responsive to a servo pressure signal from a valve which is, in turn, responsive to rotor speed. The stator may include a saturating winding for maintaining the output voltage substantially constant under varying external loads.</p> |
