【正文】 trol. And at last, this article expounds the theory of double water tank control method. Choose the design of configuration software – King view for development tools, we have had the development of the system to monitor and control interface, and also have programmed PID control procedures that made the system has a field process data, dynamic monitoring historical data archiving function, abnormal signal of the alarm function and the guidance function of the onsite operation. Keywords: Tank level。 內(nèi)蒙古科技大學(xué)畢業(yè)設(shè)計(jì)說(shuō)明書（畢業(yè)論文） III 目錄 摘要 ................................................................................................................................. I Abstract .......................................................................................................................... II 第一章 緒論 .................................................................................................................. 1 選題背景及意義 .............................................................................................. 1 液位控制系統(tǒng)的發(fā)展現(xiàn)狀 ............................................................................. 2 本文的主要工作 ............................................................................................. 3 第二章 控制 對(duì)象及算法簡(jiǎn)介 ...................................................................................... 5 被控制變量的選擇 .......................................................................................... 5 執(zhí)行器的選擇 ................................................................................................. 5 壓力液位變送器的選擇 ................................................................................. 5 研華板卡 PCI1710L 簡(jiǎn)介 ............................................................................... 6 模擬量輸入連接 .................................................................................... 8 PID 控制算法概述 ............................................................................................ 9 PID 控制器的應(yīng)用與發(fā)展 ...................................................................... 9 PID 算法類型 [1] ..................................................................................... 10 PID 兩種控制方式 ................................................................................ 11 第三章 基于組態(tài)王的單容水箱液位控制系統(tǒng) ........................................................ 13 組態(tài)王簡(jiǎn)介 [8] ................................................................................................. 13 組態(tài)王軟件的組成 .............................................................................. 13 制作工程的一般步驟 ......................................................................... 14 組態(tài)王與外部設(shè)備通信 ..................................................................... 14 控制方案選取 ................................................................................................ 15 上位機(jī)組態(tài)軟件的開發(fā) ............................................................................... 16 監(jiān)控畫面 .............................................................................................. 16 構(gòu)造數(shù)據(jù)庫(kù) .......................................................................................... 17 數(shù)據(jù)通信 .............................................................................................. 19 命令語(yǔ)言的編寫 ................................................................................. 20 內(nèi)蒙古科技大學(xué)畢業(yè)設(shè)計(jì)說(shuō)明書（畢業(yè)論文） IV 實(shí)時(shí)曲線 ............................................................................................. 21 歷史報(bào)警查詢 [11] ................................................................................. 21 歷史曲線 ............................................................................................. 23 參數(shù)整定 ....................................................................................................... 25 第四章 基于變頻器的單容液位控制系統(tǒng) ................................................................ 26 變頻調(diào)速基礎(chǔ) ............................................................................................... 26 三菱通用變頻器 FRD700 簡(jiǎn)要介紹 ........................................................... 27 FRD700 簡(jiǎn)介 ..................................................................................... 27 三菱變頻器 常規(guī)介紹 ...................................... 28 控制電路接線端極端子功能介紹 ..................................................... 29 操作面板及其功能介紹 .................................................................... 31 變頻器的作用 ............................................................................................... 31 控制系統(tǒng)調(diào)試 ............................................................................................... 32 操作步驟 ............................................................................................ 33 參數(shù)整定 ............................................................................................ 33 第五章 雙容水箱液位控制系統(tǒng) ................................................................................ 35 串級(jí)控制 ........................................................................................................ 35 串級(jí)控制概念 .................................................................................... 35 水箱液位控制方法 ............................................................................ 36 串級(jí)控制的特點(diǎn) ................................................................................ 36 串級(jí)控制系統(tǒng)的設(shè)計(jì) ................................................................................... 36 變量的選擇 ........................................................................................ 36 主副控制器的控制規(guī)律 ..................................................................... 37 主副控制器正反作用的選擇 ............................................................ 37 串級(jí)控制系統(tǒng)的工業(yè)應(yīng)用 ............................................................................ 38 本章小結(jié) ....................................................................................................... 38 總結(jié) ............