基于單片機的步進電機交直流電機轉速控制系統設計

電子論文編號:JD1109  論文字數:15740,頁數:52 

目  錄
序    言………………………………………………………………1
第1章 課題分析與方案論證……………………………………………2
1.1課題任務分析…………………………………………………………2
1.2方案論證……………………………………………………………2
1.3設計步驟 …………………………………………………………5
第2章 硬件電路………………………………………………………6
2.1主要芯片簡介………………………………………………………6
2.1.1 AT89C51………………………………………………………6
2.1.2 D/A轉換芯DAC0832…………………………………………………8
2.1.3 A/D轉換芯片ADC0809………………………………………………9
2.1.4 移位寄存器74LS164………………………………………………11
2.2硬件接線分析………………………………………………………12
2.2.1 鍵盤接口單元電路設計……………………………………………13
2.2.2 顯示接口單元電路設計……………………………………………15
2.2.3 交流電機接口單元電路設計…………………………………………16
2.2.4 A/D接口單元電路設計………………………………………………16
2.2.5 直流電機驅動接口單元電路設計……………………………………19
2.2.6 電源接口單元電路設計……………………………………………20
2.2. 總體電路圖………………………………………………………21
第3章 軟件設計……………………………………………………22
3.1 MAIN程序…………………………………………………………22
3.2 子程序……………………………………………………………24
3.2.1 多分支程序轉移子程序……………………………………………24
3.2.2 鍵盤單元掃描子程序………………………………………………26
3.2.3 顯示單元子程序…………………………………………………28
3.2.4 交流電機單元控制子程序…………………………………………30
3.2.5 步進電機單元控制子程序…………………………………………33
3.2.6 直流電機控制子程序………………………………………………36
3.2.7 A/D轉換單元子程序………………………………………………39
第 4 章 軟硬件調試 ………………………………………………42
4.1 硬件調試…………………………………………………………42
4.1.1鍵盤/顯示單元的調試………………………………………………43
4.1.2 交流電機控制單元的調試…………………………………………44 
4.1.3 A/D接口單元的調試………………………………………………46
4.2 軟件調試…………………………………………………………48
4.2.1 鍵盤/顯示單元的軟件調試…………………………………………48
4.2.2 多轉移查表指令的調試……………………………………………49
4.2.3 軟件的綜合調試…………………………………………………51
參考文獻……………………………………………………………53
致    謝……………………………………………………………54

摘  要：本設計采用單片機及其接口單元電路，利用鍵盤輸入電機的轉速數值，經單片機處理后，實現步進電機、直流電機和交流電機的轉速控制和顯示。文章從硬件和軟件兩個方面，介紹了該接口控制試驗平臺的組成和整體方案，對硬件原理圖和軟件程序框圖作了詳細的描述，并在簡單介紹元器件功能的基礎上，通過比較分析確定了各功能單元元器件的選用。并根據整體要求，劃分了各功能軟、硬件模塊，通過軟硬件聯合調試，實現了輸入轉速顯示、轉速控制、交流電機實際轉速顯示的功能。
 關鍵詞：單片機；電機控制；變頻器速度顯示；單元接口電路
 
 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