FIELD: electricity.
SUBSTANCE: direct current drive includes negative feedback circuits as to speed and derivative of flow, drive motor which is powered from U voltage source; brushless dc generator feeding the armature winding of brushless dc motor. Generator is low-voltage, and dc motor is high-voltage. They are located on the same shaft. Electric drive includes speed transducer and rotating amplifier, which implement functions of negative feedback as to speed, current converter operating in electronic switch mode, capacitor serving for energy storage of electric field, inductance coil and diode, which are connected so that inductance coil provides storage of magnetic field energy which is pumped with current converter through diode to dc motor; at that, diode prevents the passage of induced current of counter-electromotive force of brushless high-voltage dc motor.
EFFECT: improving dc drive design with control as to excitation.
2 dwg
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