中文摘要：

基于单片微处理器对三相反应式步进电机的转速与转向控制系统进行研究设计.步进电机每给一个脉冲就转动一个固定的角度,通过控制步进电机的脉冲频率和延时策略,从而改变步进角,实现步进电机的调速.该方案采用AT89C51单片机内部定时器改变CP脉冲的频率,从而实现对电机转速进行控制.经过理论及试验研究,该系统实现了步进电机调速与正反转的控制功能,能够在较宽频率范围内实现三相反应式步进电机转速调节,同时对电机的快速起停和正反转进行有效控制.

英文摘要：

Three-phase reaction stepping motor speed and steering control system is designed based on single chip microcomputer.Input stepping motor pulse frequency adjusts to the stepping motor rotating one of fixed angle.The stepper motor speed is adjusted because of changing stepper angle by controlling the pulse frequency and time delay strategies.This scheme AT89C51 microcontroller timer internal changes CP pulse frequency and stepping motor speed control.Through theoretical and experimental research,the system realized the stepping motor speed and positive ＆negative control functions.The stepping motor intelligence control system was in wide frequency range by changing pulse frequency regulating stepper motor speed and fast starting and stopping and positive ＆ negative control.