分布式交流電動機的運行監控

電氣自動化論文編號:ZD434  論文字數:22675,頁數:56，有開題報告，任務書，文獻綜述

目   錄

摘  要 ………………………………………………………………………………………Ⅰ
Abstract………………………………………………………………………………………Ⅱ
第 1章 緒 論………………………………………………………………………………1
   1.1課題研究的意義……………………………………………………………………1
   1.2課題的任務及要求…………………………………………………………………1
   1.3系統概況……………………………………………………………………………2
第2章方案的確定…………………………………………………………………………3
第3章 硬件設計…………………………………………………………………………7
    3.1整體方案的確定………………………………………………………………7
        3.1.1設計思想……………………………………………………………7
        3.1.2原理框圖……………………………………………………………7
    3.2 PLC及其擴展板 ………………………………………………………………7
        3.2.1模擬量輸入模塊FX2N—4AD…………………………………………7
        3.2.2 PT-100型溫度傳感器用模擬量輸入模塊FX2N—4AD—PT………8
        3.2.3 PLC的I/O連接設計…………………………………………8
    3.3啟動/停機控制……………………………………………………………………9
    3.4.電流監測模塊……………………………………………………………………10
        3.4.1測控原理…………………………………………………………………10
        3.4.2測量電路…………………………………………………………………12
        3.4.3監控電路……………………………………………………………14
 3.5.電壓監測電路……………………………………………………………………15
 3.5.1測控原理…………………………………………………………………15
 3.5.2測量電路…………………………………………………………………15
 3.6溫度監測模塊……………………………………………………………………15
 3.6.1測控原理…………………………………………………………………16
3.6.2測量原理…………………………………………………………………18
3.6.3測量電路…………………………………………………………………20
 3.7轉速測量電路……………………………………………………………………20
 3.7.1電動機轉速測量原理 ………………………………………………20
 3.7.2測量電路…………………………………………………………………21
 3.8顯示報警……………………………………………………………………21
 3.8.1 MAX7219…………………………………………………………………21
 3.8.2條圖顯示器………………………………………………………………23
 3.8.3顯示電路…………………………………………………………………24
 3.9聯網通信……………………………………………………………………25
 3.10操作面板…………………………………………………………………26
 3.11 PLC選型………………………………………………………………………27
 3.11 確定I/O輸出點………………………………………………………………29
第 4 章 軟件設計…………………………………………………………………32
 4.1主程序模塊…………………………………………………………………34
 4.2啟動/停機控制……………………………………………………………35
 4.3電流監控…………………………………………………………………36
 4.4電壓監控…………………………………………………………………37
 4.5溫度監控…………………………………………………………………38
 4.6速度監控………………………………………………………………39
 4.7顯示、報警……………………………………………………………40
 4.7.1.顯示主程序…………………………………………………………39
 4.7.2.MAX7219初始化……………………………………………………39
 4.7.3.向MAX7219送地址或數據…………………………………………40
 4.7.4.MAX7219數據裝載…………………………………………………41
 4.7.5翻頁顯示……………………………………………………………42
 4.7.6.報警程序……………………………………………………………42
第 5 章 元器件的選擇………………………………………………………43
第 6 章 使用說明……………………………………………………………44
結束語………………………………………………………………45
參考文獻………………………………………………………………46
致   謝 ………………………………………………………………47

摘  要：本文介紹了分布式交流電動機群的運行監控系統的功能、硬件和軟件的設計、元器件選擇和操作說明。通過對電動機常見故障的分析，提出了基于電流、電壓、溫度、速度信號的測量與控制保護方法。硬件設計部分包括整體方案的設計思路和原理框圖、PLC及其擴展板、啟動/停機控制、電流監測模塊的測控原理和測控電路、電壓監測電路的測控原理和測量電路、溫度監測模塊的測控原理和測量電路、轉速測量電路的電動機轉速測量原理和測量電路、顯示報警、聯網通信和操作面板的設計。其中PLC及其擴展板部分重點介紹了模擬量輸入模塊FX2N—4AD、PT-100型溫度傳感器用模擬量輸入模塊FX2N—4AD—PT和PLC的I/O連接設計。軟件設計部分包括主程序模塊、啟動/停機控制、電流測控、電壓測控、溫度測控、速度測控、顯示、報警模塊的編程設計。其中顯示、報警模塊部分重點介紹了顯示主程序、MAX7219初始化、向MAX7219送地址或數據、MAX7219數據裝載、翻頁顯示和報警子程序的編程設計。同時在設計交流電動機群的測控過程中介紹了幾種比較新的傳感器的應用，如CSD系列電流開關、磁補償式電壓傳感器等，還介紹了MAX7219的工作原理及條圖顯示電路。模擬實驗表明：該交流電動機群的智能化測控系統具有運行可靠、操作方便以及功能完善等優點，有著廣闊的應用前景。
 關鍵詞：可編程序控制器  測控保護  互感器  CSD電流開關  磁補償式電壓傳感器  溫度傳感器  高速計數器  MAX7219  條圖顯示器  翻頁  順序功能圖  梯形圖  指令
  
  
 The intelligentization measurement and control system of AC electric motor crowd
 
Abstract：This article introduces the function, design components and parts selection of hardware and software of the intelligentization measurement and control system of AC electric motor crowd ,and it give out the operation explanation. By means of the analysis of the common wrongs to the electromotor, this paper puts forward methods based on the measurement and control protection of current, voltage, temperature and speed signals. The hardware design part includes design thoughts and schematics, PLC and the expands board, start / stop the machine control, mornitor and controlling principle , mornitor and controlling circuit of current, mornitor and watcher principle and the metering circuit of voltage, temperature mornitor and controlling principle and metering circuit, electromotor rotating speed measurement principle and the metering circuit, demonstration warning and internetworking communication of rotating speed measurement circuit of monitoring module and operates the design of face board including design train of thought and the principle block diagram and PLC of entire scheme. Among them PLC and its expanded board part are stressly introduct the capacity imitating load module FX2N-4AD and PT-100's mould temperature bulb to link designing with the I/O of the capacity imitating load module FX2N-4AD-PT and PLC. The software design part includes the master routine module and starts / stops the machine control, current observing and controlling, voltage observing and controlling, temperature observing and controlling, speed observing and controlling, demonstration and range the compiling design of warning module. Among them Showing and warning part stressly are introduced demonstration master routine, MAX7219's beginningization, sending address or data and MAX7219's data loading and turned over the range the compiling design that the page or leaf shows ,and warning the procedure to MAX7219. Introducing several kinds of applications of fairly newer sensor in designing ,the observing and controlling course of AC electric motor crowd at the same time, like CSD's series current switch and magnetism compensation type voltage sensor etc, the work principle still to introduce MAX7219 reaches the strip to scheme to show the circuit. Imitating the experiment indicate: the intelligentization measurement and control system of this AC electric motor crowd possesses the merits like that the operating is reliable or operation convenience as well as function are perfect etc, and has the vast application foreground.
 Key Words：Programmable Logic Computer；Monitor and Protection；Mutual Inductor；CSD Current Switchs；Magnetic Compensation Voltage Sensor；Temperature Sensor；Counter at a high speed；MAX7219；Bar-Graph Display；page；Sequential function chart； Ladder diagram；Instruction list