Research on the starting process of high-revolution vibration motors

This paper is mainly concerned with the starting process of high-revolution vibration motor, and the d-q-0 mathematical model has been described, pointing out that the starting process of high-revolution vibration motor can be optimized in design by way of adjusting the length of the iron cores and the numbers of coils. After detailed analysis of the starting characteristics curves, we have concluded that: (1) the startup current consists of apparent low-frequency component, which results in the relatively large effective value of initiation current, for which in the motor design the initiation time of motors shall be strictly controlled; (2) During the initiation of high-revolution motor, the revolution characteristics is of approximate linear characteristics, but without "super synchronization" or "oscillation"; (3) in the initiation of high-revolution vibration motors, there is basic frequency alternation torque component, which attenuates quickly and exerts very slight influences on the initiation properties of motors.