摘要
使用PLC模块搭建步进电机控制系统时,系统灵活性差、造价高。针对此问题,提出基于ARM7微处理器的步进电机的嵌入式控制系统,并进行了两种步进电机升降速曲线的设计与实现,给出了这两种曲线在工业定长嵌入式控制系统中的应用对比。实际运行表明,采用提出的升降速曲线策略的步进电机控制系统在未增加成本的情况下,有效抑制了失步和过冲现象,避免了机械柔性冲击,延长了系统寿命,提高了生产效率。
The step motor is a kind of electric actuator that transfers electrical pulses into angular displacement. It is wildly used in all kinds of open-loop control systems because of its no cumulative error and easy control. To the problem that PLC used in the control of step motor has disadvantages of high price and being unhandy in the system structure, an ARM7 processor based embedded control system is proposed for step motor and two kinds of acceleration and deceleration curves are designed and implemented. An application comparison is given in the industrial constant length control. The results show that the proposed methods improve the out-of-step and overshoot performance of step motor system and prolong the system life without more cost.
出处
《控制工程》
CSCD
2008年第5期576-579,共4页
Control Engineering of China
基金
国家自然科学基金资助项目(60534010)
