摘要
研究步进电机优化控制问题,步进电机控制系统存在着控制功能单一和控制精度不高的缺陷。针对上述问题,提出了一种用全数字锁相环的控制系统设计方案。锁相环能够在较大的频率范围内快速跟踪和锁定输入信号的频率和相位,应用脉冲分配控制器,可提高整个系统的同步性能,增强步进脉冲信号频率的稳定性。采用超高速集成电路硬件描述语言(VHDL)进行电路系统设计,利用计算机仿真技术对该系统进行了仿真验证,并给出了布局布线后时序仿真的结果。仿真结果表明,该系统具有控制灵活、响应速度快、稳定性能好等特点,改进的设计方案可实现对步进电机转速、转向和定位的一体化控制,能够显著提高系统的控制精度,并可应用于其它不同工作方式的步进电机控制系统设计。
For improving the stepper motor control system, a design method based on digital phase-locked loop was proposed. With this loop, the frequency and phase of input signal can be tracked and locked quickly when a large frequency variation occurs. And if the loop is applied in pulse distribution controller, synchronization performance of the entire system can be improved significantly, and frequency stability of the stepped pulse signal can be enhanced evidently. The control system was designed by using very high speed integrated circuit hardware description language （ VHDL）, and verified by computer simulation technology. Simulation results show that the system has the character-istics of flexible control, fast response, excellent stability and synchronization performance, and it can significantly increase the performances of stepper motor control system, furthermore, with this system a perfect control for speed, steering and positioning is achieved simultaneously. The design can be used in other different stepping motor control system designs.
出处
《计算机仿真》
CSCD
北大核心
2012年第9期208-211,共4页
Computer Simulation
基金
湖南省自然科学基金资助项目(11JJ6054)
湖南省科技厅项目(2011GK3224)
