基于單片機(jī)回轉(zhuǎn)窯窯尾壓力系統(tǒng)

電氣自動(dòng)化論文編號(hào):ZD661    論文字?jǐn)?shù):20533,頁(yè)數(shù):45

目 錄
摘要 I
ABSTRACT II
第一章 緒論 1
1.1 課題研究背景及意義 1
1.1.2 鐵紅回轉(zhuǎn)窯工藝簡(jiǎn)介 2
1.2 回轉(zhuǎn)窯壓力控制系統(tǒng)的研究和發(fā)展現(xiàn)狀 2
1.2.1 壓力檢測(cè)方法 2
1.2.2.壓力控制算法 3
1.2.3 壓力控制系統(tǒng) 4
1.2.4 應(yīng)用前景 6
1.3 課題研究的內(nèi)容 7
第二章 窯尾壓力控制系統(tǒng)硬件設(shè)計(jì) 8
2.1 控制器處理單元 8
2.2 數(shù)據(jù)采集電路 10
2.2.1 壓力傳感器 10
2.1.2 A/D模數(shù)轉(zhuǎn)換單元 13
2.3 輸出控制電路 13
2.3.1 D/A轉(zhuǎn)換電路 14
2.3.2 變頻器 15
2.4 外圍輔助電路 15
2.4.1 鍵盤(pán)顯示電路 16
2.4.2 通信電路 17
2.4.3 報(bào)警電路 18
2.5 本章小結(jié) 19
第三章 壓力控制算法研究 20
3.1 常規(guī)PID控制 20
3.1.1 PID控制原理 20
3.1.2 常規(guī)PID控制算法的局限及其改進(jìn) 21
3.2 模糊PID控制 22
3.2.1 輸入量誤差e和誤差變化率ec模糊化 23
3.2.2 參數(shù)的整定規(guī)則的確定及模糊推理 25
3.3 控制算法仿真 25
3.3.1 Matlab與Simulink簡(jiǎn)介 25
3.3.2 仿真過(guò)程 27
3.4 本章小結(jié) 31
第四章 軟件設(shè)計(jì) 32
4.1 軟件流程 32
4.2 本章小結(jié) 36
第五章 總結(jié) 37
致謝 38
參考文獻(xiàn) 39
附錄 1

摘要
 隨著現(xiàn)代壓力控制技術(shù)的發(fā)展，人們對(duì)壓力控制系統(tǒng)的控制精度越來(lái)越高。在工業(yè)生產(chǎn)中，鐵紅回轉(zhuǎn)窯的窯尾壓力控制也直接關(guān)系到鐵紅產(chǎn)品的產(chǎn)量和質(zhì)量。單片微機(jī)在許多過(guò)程控制設(shè)備和產(chǎn)品中都得到廣泛的應(yīng)用。由于其體積小，價(jià)格低，具有邏輯判斷、定時(shí)計(jì)數(shù)、程序控制等多種功能，在各個(gè)領(lǐng)域、各個(gè)行葉，使用單片機(jī)控制壓力是很常見(jiàn)的一種方式。
 首先對(duì)回轉(zhuǎn)窯壓力技術(shù)的研究背景與發(fā)展現(xiàn)狀進(jìn)行論述，并且分析了其研究進(jìn)展以及技術(shù)要求，然后設(shè)計(jì)了一個(gè)基于單片機(jī)回轉(zhuǎn)窯窯尾壓力系統(tǒng)。此系統(tǒng)對(duì)硬件進(jìn)行了具體的設(shè)計(jì)和相關(guān)軟件流程的設(shè)計(jì)，而且對(duì)所選的模糊PID控制算法進(jìn)行了MATLAB仿真。
 最后研究了基于單片機(jī)模糊PID控制系統(tǒng)的優(yōu)點(diǎn)。并且根據(jù)仿真實(shí)驗(yàn)結(jié)果，對(duì)控制系統(tǒng)的性能給出了分析評(píng)價(jià)。

關(guān)鍵字：鐵紅；回轉(zhuǎn)窯；單片機(jī)；模糊PID控制

ABSTRACT
 With the development of modern pressure control technology, people pay more and more attentions to the precision of control pressure system. In modern industrial production, the pressure control of iron oxide rotary kiln is also directly related to the product yield and quality of the iron oxide. Single-chip microcomputers are widely used in many process control equipment and products. Because of its small size, low price and logical judgments, time counting, process control and other functions, it is a common method to control the system by the microcomputers in various fields.    Firstly, the technology research background and current development of the pressure on the rotary kiln and analysis of its research and technical requirements are mentioned, then a system based on single chip of pressure rotary kiln is designed. This system is specifically designed on hardware and related software flows are given, and the control algorithm of fuzzy-PID is simulated by MATLAB.
 Finally, the advantages of microcomputer control system are analyzed, and the accuracy of analysis and eva luation based on simulation results are eva luated..
 
Keyword: iron oxide, rotary kiln, Single-chip microcomputer, fuzzy-PID control