本文選題：氣動(dòng) + 恒壓控制��； 參考：《浙江大學(xué)》2011年碩士論文

【摘要】：恒壓供氣系統(tǒng)以其成本低廉、安全可靠、無污染、結(jié)構(gòu)簡單易維護(hù)等優(yōu)勢廣泛應(yīng)用于氣動(dòng)伺服壓力、位置控制系統(tǒng)中,為系統(tǒng)中的氣動(dòng)設(shè)備或氣動(dòng)元件提供正常工作所需的恒定壓力源。恒壓供氣系統(tǒng)的控制精度主要由系統(tǒng)中所用到的關(guān)鍵元件超大流量減壓閥以及所采取的控制算法共同決定,對其的研究也主要圍繞這兩方面展開。 本文首先對恒壓供氣系統(tǒng)及相關(guān)技術(shù)的研究現(xiàn)狀進(jìn)行了闡述,在此基礎(chǔ)上分析了超大流量減壓閥的結(jié)構(gòu)原理,提出了恒壓供氣系統(tǒng)的結(jié)構(gòu)設(shè)計(jì)方案,然后對減壓閥和所設(shè)計(jì)的恒壓供氣系統(tǒng)進(jìn)行了數(shù)學(xué)建模和仿真分析。最后,為驗(yàn)證設(shè)計(jì)方案的可靠性,搭建了相應(yīng)的恒壓供氣系統(tǒng)試驗(yàn)平臺,并采用PID控制方法對系統(tǒng)進(jìn)行控制以研究其恒壓供氣效果。本文章節(jié)內(nèi)容安排如下： 第一章簡要介紹了氣動(dòng)技術(shù)的發(fā)展和恒壓供氣系統(tǒng)及相關(guān)技術(shù)的研究與發(fā)展現(xiàn)狀,并在此基礎(chǔ)上提出了課題的研究意義、研究內(nèi)容和預(yù)期研究目標(biāo)。 第二章首先分析了恒壓供氣系統(tǒng)的組成和工作原理,重點(diǎn)分析了系統(tǒng)中的核心控制元件—減壓閥的物理結(jié)構(gòu)和工作原理,建立了減壓閥數(shù)學(xué)模型,在此基礎(chǔ)上對整個(gè)超大流量恒壓供氣系統(tǒng)的進(jìn)行了仿真分析。 第三章搭建了恒壓供氣系統(tǒng)的試驗(yàn)平臺,對所用到的硬件進(jìn)行了簡單介紹。詳細(xì)描述了系統(tǒng)軟件編寫過程中的關(guān)鍵技術(shù)和恒壓控制策略及實(shí)時(shí)參數(shù)采集。 第四章基于所建立的平臺對系統(tǒng)的恒壓控制效果進(jìn)行了試驗(yàn)研究,并對開環(huán)控制和閉環(huán)控制的試驗(yàn)結(jié)果進(jìn)行了對比分析,最后通過整定獲得了適應(yīng)于該系統(tǒng)的最佳PID控制參數(shù)。 第五章對全文的主要研究工作進(jìn)行了總結(jié),并展望了今后需進(jìn)一步研究的工作和方向。
[Abstract]:The constant pressure gas supply system is widely used in pneumatic servo pressure and position control system because of its advantages of low cost, safety and reliability, no pollution, simple structure and easy maintenance. Provide a constant pressure source for pneumatic equipment or pneumatic components in the system to work properly. The control accuracy of the constant pressure gas supply system is mainly determined by the key components used in the system, the super-large flow pressure reducing valve and the control algorithm adopted, and the research on it is also carried out mainly around these two aspects. In this paper, the research status of constant pressure gas supply system and related technology is described, and the structure principle of super pressure reducing valve is analyzed, and the structure design scheme of constant pressure gas supply system is put forward. Then, mathematical modeling and simulation analysis of the pressure reducing valve and the designed constant pressure gas supply system are carried out. Finally, in order to verify the reliability of the design scheme, the test platform of the constant pressure gas supply system is built, and the PID control method is used to control the system to study the effect of the constant pressure gas supply system. The sections are organized as follows: The first chapter briefly introduces the development of pneumatic technology and the research and development status of constant pressure gas supply system and related technologies. On this basis, the research significance, research content and expected research goal are put forward. In the second chapter, the composition and working principle of the constant pressure gas supply system are analyzed, and the physical structure and working principle of the key control element in the system are analyzed, and the mathematical model of the pressure reducing valve is established. On this basis, the simulation analysis of the whole large flow constant pressure gas supply system is carried out. In the third chapter, the test platform of constant pressure gas supply system is built, and the hardware used is introduced briefly. The key technology, constant voltage control strategy and real-time parameter acquisition are described in detail. In chapter 4, the constant pressure control effect of the system is studied based on the established platform, and the experimental results of open loop control and closed loop control are compared and analyzed. Finally, the optimal PID control parameters suitable for the system are obtained by tuning. In the fifth chapter, the main research work is summarized, and the future research work and direction are prospected.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2011
【分類號】：TH138

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 段鐵群,王萍,黃宇輝,付國民;基于PLC的模糊自整定PID參數(shù)控制器在變頻調(diào)速恒壓供氣系統(tǒng)中的應(yīng)用[J];電機(jī)與控制學(xué)報(bào);2003年04期

2 王雪松;程玉虎;彭光正;;電氣比例壓力閥自校正壓力調(diào)節(jié)器的設(shè)計(jì)[J];電機(jī)與控制學(xué)報(bào);2006年01期

3 林淵輝;;空氣壓縮機(jī)恒壓供氣系統(tǒng)節(jié)電改造概述[J];能源與環(huán)境;2006年03期

4 張禮華;陶國良;盧道華;;可編程壓電式電氣比例閥的建模與實(shí)驗(yàn)研究[J];江蘇科技大學(xué)學(xué)報(bào)(自然科學(xué)版);2007年03期

5 崔保健;趙海鷹;;基于壓力控制器的氣壓高度表自動(dòng)檢定系統(tǒng)[J];計(jì)測技術(shù);2009年03期

6 王福生,孟曉風(fēng);一種氣體壓力控制方法及應(yīng)用[J];測控技術(shù);2001年04期

7 王祖溫,包鋼,王建宇;精密減壓閥振動(dòng)現(xiàn)象的仿真分析[J];機(jī)床與液壓;2001年02期

8 李笑,關(guān)新,湯金山;直動(dòng)式電反饋高壓電氣比例減壓閥的研制[J];機(jī)床與液壓;2003年06期

9 鐘圣國,彭光正;利用電/氣比例閥的容腔壓力控制系統(tǒng)的建模與仿真[J];機(jī)床與液壓;2004年10期

10 王傳禮;丁凡;許賢良;;GMA噴嘴擋板閥參數(shù)設(shè)計(jì)及特性研究[J];機(jī)床與液壓;2006年08期

相關(guān)碩士學(xué)位論文 前1條

1 張建燦;燃料電池空壓機(jī)測試平臺及供氣系統(tǒng)的控制策略研究[D];浙江大學(xué);2005年

，

本文編號：1835160