同时讨论了电源合闸角、转子初始相角、磁链和负载转矩对电机转速和旋转方向的影响。
Influences on the speed and direction of the rotation by the phase Angle of the supply voltage, initial Angle of rotor position, PM line flux and the load torque are discussed.
液体媒质超声波电机定、转子不直接接触，利用液体媒质驱动转子旋转，是超声波电机新的研究方向。
The ultrasonic motor driving fluid directly is a new type of non-contact ultrasonic motor. The rotor does not contact with the stator and is driven by fluid medium.
通过选择磁场同步旋转坐标系下定子电流和永磁体磁链为状态变量，构建估算转子永磁体磁链幅值和方向的卡尔曼滤波器。
To estimate flux magnitude and direction, a Kalman filter is built by using stator current and PM flux as state variables under magnetic field oriented coordinate.
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