The model provides an important theory foundation for the speed control of stepping motor.
所建模型为步进电机的速度控制提供了理论依据。
Stepping motor control by pulse, by changing the order of power to change the direction of rotation motor, change the pulse frequency may change the motor rotation speed.
步进电机受脉冲的控制，通过改变通电的顺序可改变电机的旋转方向，改变脉冲的频率可改变电机的旋转速度。
In addition, this paper also simply analyzes the control of speed change of the stepping motor.
另外，对步进电机的变速控制也作了简要分析。
When the startup speed is higher, stepping motor will lose steps. While stopping, it will also lose steps because of inertia. So, it needs to take speed control measures on control of stepping motor.
当启动频率较高时，启动时会造成失步，而停止时由于惯性作用又会发生过冲，所以在步进电机控制中必须要采取升降速控制措施。
When the startup speed is higher, stepping motor will lose steps. While stopping, it will also lose steps because of inertia. So, it needs to take speed control measures on control of stepping motor.
当启动频率较高时，启动时会造成失步，而停止时由于惯性作用又会发生过冲，所以在步进电机控制中必须要采取升降速控制措施。
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