| 摘要 |
PURPOSE:To enable the rotational speed of a rotor to be easily and steplessly controlled, by connecting a voltage regulator and a diode to one side of a plurality of stators, and by controlling current flowing to the rotor. CONSTITUTION:The terminals of a winding 23 delta-connected to a second stator 25 are connected to commercial three-phase power sources, and the terminals of a winding delta-connected to a first stator 24 are connected to the primary side of a voltage regulator 28. Besides, one set of low voltage diodes D conducted electrically by the application of arbitrary voltage and connected in series in reversed polarity are delta-connected, and are connected to the secondary side of the voltage regulator 28. When the increase or reduction of voltage excited from a rotor 8 to the winding 22 of the first stator 24 is controlled by the voltage regulator 28, then voltage is induced to the conductor 5 of the rotor 8 via the low voltage diodes D conducted electrically by the application of the arbitrary voltage and delta-connected, and according to the increase or reduction of its voltage value, the rotational speed of the rotary body 8 is controlled. |
