| 摘要 |
PROBLEM TO BE SOLVED: To provide a system for controlling a rotational speed of a motor.SOLUTION: A motor 200 includes: a rotor 210 including an induction rotor unit 212; and a stator 220 coaxially pivoted on the rotor 210 and including an induction stator unit 222. A control module 300 is electrically coupled with the rotor 210 and the stator 220, controls an induction rotor current value of the induction rotor unit 212 and an induction stator current value of the induction stator unit 222 to generate a rotational speed in the rotor 210, and when the rotational speed reaches a predetermined value, reduces or cuts off the induction rotor current value so that the rotor 210 holds the rotational speed by rotational inertia and the induction stator current value. A display module 400 is electrically coupled with the control module 300 to display the rotational speed and a motor current value. Consequently, a magnetic history phenomenon of the motor 200 can be reduced, and further an energy saving effect can be achieved. |
