| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a permanent magnet type generator which controls magnetic flux by an increase and a decrease of a magnetic path air gap caused by a magnetic flux control device, and generates a prescribed constant voltage by energizing weak fields to output windings. <P>SOLUTION: This permanent magnet type generator comprises a magnetic flux control mechanism having a ring-shaped magnetic flux control cage 7 between a rotor 3 and a stator 4, and also comprises the output windings 65 each composed of a three-phase primary winding 38 and a three-phase secondary winding 39 which are rolled up to a comb 10 of the stator 4, and reversely rolled-up three-phase weak field windings 52 which are connected to the output windings 65 in series. A prescribed voltage is generated by on/off-controlling switches 55, 56 arranged at the output windings 65 and switches 57 arranged at the weak field windings 52 in response to the number of revolutions of the rotor 3 and a load, and controlling the magnetic path air gap caused by the magnetic flux control cage 7. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
