Motor driving method
AssigneeIndustrial Technology Research Institute
InventorsMing-Mao Hsu, Yu-Yuan Chen, Tsu-Min Liu
Life of this patent
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Abstract
A motor driving method is applied to a motor with a rotor comprising a magnetic reluctance structure. The motor driving method comprises enabling the motor by an asynchronous driving method, controlling the motor by the asynchronous driving method according to a speed regulation command, detecting a rotor speed of the motor and determining whether the rotor speed is larger than a speed threshold, and when the rotor speed is larger than the speed threshold, controlling the motor by a synchronous driving method.
Claims6
A motor driving method, applied to a motor with a rotor comprising a magnetic reluctance structure, and the motor driving method comprising:
- starting the motor up by an asynchronous driving method;
- controlling the motor by the asynchronous driving method according to a speed regulation command;
- detecting a rotating speed of the rotor of the motor, and determining whether the rotating speed of the rotor is equal to/higher than a threshold rotating speed or not;
- and
- controlling the motor by a synchronous driving method when the rotating speed of the rotor is equal to/higher than the threshold rotating speed;
- wherein the threshold rotating speed is obtained by multiplying a synchronous rotating speed of the motor by a threshold percentage.
Dependencies are inferred from the claim text.