在此基础上研究了利用谐波反电势信号实现混合式步进电动机闭环控制的方法，设计了步进电动机的微机控制系统。
On this base, the closed - loop control method of hybrid step motor using the harmonic back EMF is investigated, and the microcomputer control system of step motor is designed.
研究了利用谐波反电势信号实现混合式步进电动机闭环控制的方法。
In this paper, the closed-loop control method of hybrid step motor using the harmonic back EMF is investigated.
利用气隙比磁导法建立了混合式步进电动机的磁网络模型，推导出谐波反电势的表达式。
The magnetic network model of hybrid step motor is established according to the air gap late permeance method, and the expression of the harmonic back EMF is deduced.
本绕线式电动机转子电路脉冲调速系统模拟试验，省去了测速发电机，而利用转子电势组成速度负反馈系统。
The model test tried on this system did not use the tachometer generator but used rotor electromotive force instead to form the speed negative feed-back system.
矢量变换后异步电动机数学模型中还存在M轴和T轴间的交叉电势的耦合作用，影响调速系统的控制性能。
In vector control, there are the cross-coupling voltages between the m and t components of the stator current for Induction Motor (IM), it affects the performance of speed control system.
分析了谐波反电势信号的构成，设计了相应的位置信号检测电路及步进电动机的微机控制系统。
The constitute of harmonic back EMF is analysed, the position detection circuit and the microcomputer control system of step motor is designed.
分析了谐波反电势信号的构成，设计了相应的位置信号检测电路及步进电动机的微机控制系统。
The constitute of harmonic back EMF is analysed, the position detection circuit and the microcomputer control system of step motor is designed.
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