基于单片机的步进电机交直流电机转速控制系统设计

电子论文编号:JD1109  论文字数:15740,页数:52 

目  录
序    言………………………………………………………………1
第1章 课题分析与方案论证……………………………………………2
1.1课题任务分析…………………………………………………………2
1.2方案论证……………………………………………………………2
1.3设计步骤 …………………………………………………………5
第2章 硬件电路………………………………………………………6
2.1主要芯片简介………………………………………………………6
2.1.1 AT89C51………………………………………………………6
2.1.2 D/A转换芯DAC0832…………………………………………………8
2.1.3 A/D转换芯片ADC0809………………………………………………9
2.1.4 移位寄存器74LS164………………………………………………11
2.2硬件接线分析………………………………………………………12
2.2.1 键盘接口单元电路设计……………………………………………13
2.2.2 显示接口单元电路设计……………………………………………15
2.2.3 交流电机接口单元电路设计…………………………………………16
2.2.4 A/D接口单元电路设计………………………………………………16
2.2.5 直流电机驱动接口单元电路设计……………………………………19
2.2.6 电源接口单元电路设计……………………………………………20
2.2. 总体电路图………………………………………………………21
第3章 软件设计……………………………………………………22
3.1 MAIN程序…………………………………………………………22
3.2 子程序……………………………………………………………24
3.2.1 多分支程序转移子程序……………………………………………24
3.2.2 键盘单元扫描子程序………………………………………………26
3.2.3 显示单元子程序…………………………………………………28
3.2.4 交流电机单元控制子程序…………………………………………30
3.2.5 步进电机单元控制子程序…………………………………………33
3.2.6 直流电机控制子程序………………………………………………36
3.2.7 A/D转换单元子程序………………………………………………39
第 4 章 软硬件调试 ………………………………………………42
4.1 硬件调试…………………………………………………………42
4.1.1键盘/显示单元的调试………………………………………………43
4.1.2 交流电机控制单元的调试…………………………………………44 
4.1.3 A/D接口单元的调试………………………………………………46
4.2 软件调试…………………………………………………………48
4.2.1 键盘/显示单元的软件调试…………………………………………48
4.2.2 多转移查表指令的调试……………………………………………49
4.2.3 软件的综合调试…………………………………………………51
参考文献……………………………………………………………53
致    谢……………………………………………………………54

摘  要：本设计采用单片机及其接口单元电路，利用键盘输入电机的转速数值，经单片机处理后，实现步进电机、直流电机和交流电机的转速控制和显示。文章从硬件和软件两个方面，介绍了该接口控制试验平台的组成和整体方案，对硬件原理图和软件程序框图作了详细的描述，并在简单介绍元器件功能的基础上，通过比较分析确定了各功能单元元器件的选用。并根据整体要求，划分了各功能软、硬件模块，通过软硬件联合调试，实现了输入转速显示、转速控制、交流电机实际转速显示的功能。
 关键词：单片机；电机控制；变频器速度显示；单元接口电路
 
 Abstract: This paper presents a study on the designing of MCU and its interface modules circuits. The function of Stepper motor, DC motor and the AC motor speed control and display can be achieved by the circuit after the circuit was processed by MCU through the keyboard to input  the motor values. In the aspect of the hardware and software, the composition and the overall program on the platform of the interface control tests were introduced . The diagram of the hardware and software was also described in detail  and  the functional components based on analysis of the functional components of the modules were selected by comparison with others. Besides, according to the general requirements, the functions of software and hardware modules were divided. Software and hardware joint debugging, In order to implement the function of input speed display, speed control, the actual speed of AC motor display.
 Keywords: MCU; Motor control; Inverter speed display; Unit Interface circuit