雙容液位串級控制系統的設計與研究

電子機電論文編號:JD609  附開題報告,論文字數:31708,頁數:45

目錄
摘要 1
Abstract 2
引言 4
第1章 緒論 5
1.1 課題來源，背景及意義 5
1.2 THSA-1型過控綜合自動化控制系統簡介 6
1.3 智能儀表的應用及未來發展趨勢 9
1.4 課題研究的內容及論文安排 10
第2章智能儀表控制介紹 10
2.1  智能儀表的簡介 10
2.2 硬件組成 13
2.3 系統硬件結構和工作過程 13
2.4 系統軟件設計 14
2.5 本章小結 16
第3章 MCGS組態軟件的介紹 16
3.1 什么是MCGS組態軟件 16
3.2  MCGS組態軟件的系統構成 17
3.3  MCGS組態軟件的功能和特點 18
3.4 MCGS組態軟件的工作方式 19
3.5 MCGS組態軟件常用術語 20
3.6  MCGS組態軟件的操作方式 21
3.7 建立MCGS新工程 22
3.7.1  設計畫面流程 23
3.7.2 整體畫面 26
3.8 本章小結 28
第4章 液位串級控制系統分析與建模 29
4.1 串級控制系統 29
4.2 液位控制系統 31
4.3 建模方法 32
4.4 系統建模 32
4.5 系統特性測試 33
4.6 模型最終確定 34
4.5 本章小結 35
第5章 系統的PID參數整定 36
5.1  PID概述 36
5.2 控制器參數整定 37
5.3  PID參數的確定 38
5.4 系統特性測試． 40
5.5 本章小結 41
結論 42
參考文獻 43
致謝 44

摘要

在化學工業生產中，液位控制是一項非常重要的環節。本論文以過程綜合自動化控制系統實驗平臺為研究背景，以智能儀表控制方法為主要工具，進行液位控制方法研究。隨著科學技術的不斷發展人們開始利用各種先進的儀器和技術組成計算機控制系統來代替人工復雜的控制操作，智能儀表控制便是其中一種非常好的控制方法。集自動控制技術、計算機技術、通信技術為一體的數字式控制智能控制一般具有極其豐富的運算功能，且使用靈活方便、圖形或數字顯示形象直觀、運行安全可靠等優點，智能控制儀表越來越廣泛的被應用于工業控制領域。
在控制算法方面，通過該實驗平臺并用智能儀表構成控制系統回路。然后根據系統具體的控制要求選擇不同的控制算法，主回路選擇PI調節器，副回路選擇P調節器來實現對系統的整體控制，并通過工程整定法對調節器參數進行整定，使系統在正常工作的情況下很快進入穩定狀態，達到令人滿意的效果。
本課題的研究，有利于使我們掌握過程控制的一些基本知識和算法，為理論聯系實際提供了良好的試驗環境。

關鍵詞：液位控制；串級控制；智能儀表控制；PID控制
                                                                       

Abstract

Provide in the chemistry industry, the control of the liquid is to relate to the important link.This  theory to synthesize to make automate the control system  experiment flat ground contain process for the sake of the study background, appear the intelligence to control the method for the sake of main parts of toolses, the technique that continues to open the exhibition control  method research.Along to have science to develop the person to beginning to make use of the pioneer of tool and dissimilarity technically arrives to draw up the calculator control system to arrive to replace the artificial complicated control operation constantly, the intelligence appears to control the woulds is a very fine control method.The numerical type that gathers the automatic control technique, calculator technique, the correspondence technique as integral whole controls the intelligence control to have very and abundant operation function generally, and vivid convenience, sketch or numerals of usage manifestation the image keeps the view and circulates safe credibility etc. advantage, intelligence control appearance more and more extensively of is apply to control the realm in the industry.
At the appearance calculation road that control, has been should experiment the flat ground goes to offset the intelligence to appear to draw up to control the system behind of track.Then request to choose the different control  calculation road according to the system of concrete control, the main part  track choice  PI modulator of behind, bad habit- the track choice the P modulator of behind arrive to complete all controls toward system, and carry on the back the long method of arrive to continue to open the exhibition to all of the modulator parameters to carry on the back the long through all of the engineerings, make the system input the stable emergence very very soon under the regular work of condition, attain the virtuous result.
The research of this topic, is beneficial to make we control some basic knowledge and the calculation road that process controls, the contact arrives the supply for the sake of the theories good and try at court the environment body last.

Key word: the control of the liquid of A; the string class control; the intelligence appears the control; the PID control