步进电机控制系统设计_自动化专业论文范文
发布时间：2015-01-23
来源：人大经济论坛
自动化专业论文范文
目 录
第1章 绪论1
1.1 课题背景1
1.2 步进电机概述2
1.3 步进电机驱动系统概述3
1.4 本文研究内容4
第2章 混合式步进电机特点及其工作原理5
2.1 步进电机基础知识5
2.2 步进电机的特点7
2.3 混合式步进电机的基本工作原理9
第3章 步进电机驱动系统12
3.1 步进电机驱动系统结构12
3.2 步进电机驱动器的特点13
3.3 步进电机相绕组的电气特性13
3.4 混合式步进电机的驱动电路分类和性能比较15
第4章 步进电机驱动系统总体设计22
4.1 总体方案设计22
4.2 硬件选型23
4.3 供电方案26
4.4 步进电机驱动器硬件设计29
总 结36
参考文献37
致 谢39
摘 要
本文是介绍步进电机驱动器的设计方法。本设计的设计是针对三相反应式步进电机的设计。
本设计通过对步进电机理论知识的学习在此基础上进一步研究与步进电机关系密切的驱动器的设计。主要是对驱动系统和驱动电路的设计、芯片选择和硬件实现进行研究设计。
设计时将LM331芯片接成电压/频率(V/F) 转换方式, 将输入控制电压转换成一定宽度的脉冲信号. 方向控制信号由电压比较电路生成. PMM 8713为集成脉冲分配芯片, 可将输入脉冲信号分配成一定相序的控制各相通断的脉冲信号.
设计的驱动器采用高、低压电源自动切换供电技术和恒流斩波驱动方式，降低了步进电动机的低频振荡，提高了步进电动机的高频力矩。采用VMOS管驱动电机，使得驱动电源稳定可靠。来达到驱动器驱动的步进电动机，低速运行时振动小，转动平稳；高速运行时，电机输出扭矩大，不易堵转。且驱动器材料成本低，电路简单可靠，易于制造、修，与控制系统配套使用方便，性能价格比高，具有一定的推广使用价值。
关键词：关键词1：步进电机，关键词2：驱动器，关键词3：LM331和PMM8713，
关键词4：VMOS
Abstract
This paper is on the stepper motor drive design. This design is designed to react against three-phase stepping motor design. The design of the stepper motor through the theoretical knowledge of the study on the basis of this research and further close the stepper motor drive design. The main drive system and drive circuit design, chip select and hardware for research and design. LM 331 will be designed to chip into a voltage / frequency (V / F) conversion, will enter into a certain control voltage pulse width of the signal. Direction control signals generated by the voltage circuit comparison. PMM 8713 for the distribution of pulses integrated chip can be Enter into certain pulse distribution phase sequence control of the same off the pulse. Design of a drive high and low voltage power supply automatically switch technology and constant current chopper-driven approach, reducing the stepper motor of the LFO, the increase of high-frequency stepper motor torque. VMOS use of motor-driven, making stable and reliable power supply. To achieve drive stepper motor-driven, low-speed operation of small vibration, rotating stable high-speed operation, the motor torque output, not stall. And the driver of low cost, simple and reliable circuit, easy to manufacture, repair, and control system supporting ease of use, cost performance, the promotion of a certain value.
KEY WOEDS: guanjianci1:Stepper motor, guanjianci2: Driver, guanjianci3: LM331andPMM8713，guanjianci4: VMOS
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