【正文】 畢業(yè)設(shè)計(jì)報(bào)告 (論文 ) 基于內(nèi)模控制的 PID在過程控制中的應(yīng)用研究 所 屬 系 化工與制藥工程系 專 業(yè) 化學(xué)工程與工藝 學(xué) 號(hào) 06110341 姓 名 王大林 指導(dǎo)教師 陳夕松 起訖日期 設(shè)計(jì)地點(diǎn) 東南大學(xué)四牌樓校區(qū)動(dòng)力樓 119 東南大學(xué)成賢學(xué)院畢業(yè)設(shè)計(jì)報(bào)告（論文） 誠 信 承 諾 本人承諾所呈交的畢業(yè)設(shè)計(jì) 報(bào)告（論文）及取得的成果是在導(dǎo)師指導(dǎo)下完成，引用他人成果的部分均已列出參考文獻(xiàn)。如論文涉及任何知識(shí)產(chǎn)權(quán)糾紛，本人將承擔(dān)一切責(zé)任。 學(xué)生簽名： 日 期： I 基于內(nèi)?？刂频?PID 在過程控制中的應(yīng)用研究 摘 要 內(nèi)模控制是基于過程數(shù)學(xué)模型而進(jìn)行控制器設(shè)計(jì)的一種新型控制策略。內(nèi)模控制具有很多優(yōu)點(diǎn)，如設(shè)計(jì)簡單，控制性能好，性能分析優(yōu)越等。隨著工業(yè)過程自動(dòng)化的普及，過程控制越來越受到控制界的廣泛關(guān)注。內(nèi)?？刂凭褪瞧渲兄唬?是以控制內(nèi)部數(shù)學(xué)模型為基礎(chǔ)，通過控制內(nèi)部模型來達(dá)到控制整個(gè)系統(tǒng)穩(wěn)定，進(jìn)而達(dá)到工業(yè)過程生產(chǎn)指標(biāo)的要求。所以內(nèi)?？刂撇粌H是一種先進(jìn)的控制算法，而且是研究預(yù)測(cè)控制模型的控制策略的重要理論基礎(chǔ)！ 本論文基于東南大學(xué)過程控制實(shí)驗(yàn)室 HGK1 型過程控制實(shí)驗(yàn)平臺(tái)，以該平臺(tái)中的液位過程為研究對(duì)象，設(shè)計(jì)基于可編程序控制器（ PLC）的過程控制系統(tǒng)，采用內(nèi)?？刂疲?IMC）算法，仿真并實(shí)驗(yàn)研究 IMC 在該過程中的應(yīng)用效果。通過本次學(xué)習(xí)掌握 IMC 原理及算法，為以后在工作中的工程實(shí)際應(yīng)用打下良好的鋪墊！ 論文在介紹了 HGK1 型過程控制 實(shí)驗(yàn)平臺(tái)后，闡述了液位過程建模的方法和特點(diǎn)。在機(jī)理建模，試驗(yàn)建模和混合建模中選用試驗(yàn)建模方法建立了被控過程的數(shù)學(xué)模型。設(shè)計(jì)液位過程 PLC 控制系統(tǒng)，包括液位計(jì)、流量計(jì)、調(diào)節(jié)閥、 PLC 輸入 /輸出模塊的接線，以及與 PC 機(jī)間的通訊連接。仿真比較了 IMCPID 控制及 IMC 的動(dòng)態(tài)與靜態(tài)性能。為進(jìn)一步提高控制系統(tǒng)的動(dòng)靜態(tài)性能，設(shè)計(jì)采用串級(jí) IMC 控制方案，既提高了系統(tǒng)的動(dòng)態(tài)特性，又保證了系統(tǒng)的穩(wěn)態(tài)精度。編寫基于 PLC 的 IMC 應(yīng)用軟件，以及基于 PC 上位機(jī)的應(yīng)用組態(tài)軟件，實(shí)現(xiàn)液位過程的自動(dòng)控制和監(jiān)督管理，仿真和實(shí)驗(yàn)證明了該方 案的有效性。仿真研究算法超調(diào)和實(shí)際水箱液位超調(diào)基本上都穩(wěn)定在設(shè)定值附近，達(dá)到了設(shè)計(jì)要求。 關(guān)鍵詞：內(nèi)模控制 。 串級(jí)控制 。 IMCPID。 PLC 監(jiān)控 II Based on internal model control for the application of PID control in the process Abstract Internal model control is based on the mathematical model of a novel control strategy for controller internal model control has many advantages, such as simple design, good control performance, superior performance with the development of industrial process automation, process control has attracted more and more attention in control internal model control is one of them, it is to control the mathematical model, the internal model control to achieve stable control of the whole system, and achieve the production index of industrial process requirements. So the internal model control is not only a kind of advanced control algorithm, but also is the important theoretical basis of prediction control model! In this paper, process control laboratory of Southeast University experimental platform based on HGK1 types of process control, the level process of the platform as the research object, design based on programmable controller (PLC) of the process control system, the internal model control (IMC) algorithm, the application effect of experimental research of IMC in the process of simulation and. Through the study and master the IMC principle and algorithm, for the future work in the practical engineering application to lay a good foundation! Based on the introduction of the HGK1 process control experimental platform, expounds the characteristics and methods of liquid level process modeling. The mechanism modeling, experimental modeling and hybrid modeling using experimental modeling method to establish the mathematical model of controlled process. Design of liquid level process control system for PLC, including liquid level meter, flowmeter, control valve, PLC input / output module wiring, and inter PC munication connection. Simulation of dynamic IMCPID control and IMC and static performance. In order to improve the control system dynamic and static performance, design the cascade IMC control scheme, which improves the dynamic characteristics of the system, and ensure the steady state accuracy of the system. Preparation of PLC based on IMC application software, and based on the application of configuration software PC PC, to realize the automatic control and the supervision level process, the simulation and experiment results show the effectiveness of the proposed scheme. Simulation Research on the algorithm of overshoot overshoot actual water level basically stable around the setting value, reached the design requirements. Key words: Internal model control。 Cascade control。 IMCPID。 PLC control III 目 錄 摘要 .................................................................................................................................................. ? Abstract ............................................................................................................................................?? 目 錄 ......................................................................................................................................... ? 第一章 引言 .................................................................................................................................... 1 引言 ................................................................................................................................... 1 內(nèi)?？刂频陌l(fā)展現(xiàn)狀與前景 ................................................................................................ 1 本文的研究目的 .................................................................................................................... 2 該論文基于內(nèi)模控制的 PID 在過程控制中的應(yīng)用研究的主要工作內(nèi)容和章節(jié)如下：................................................................................................................................................. 3 第二章 過程建模 ............................................................................................................................. 4 系統(tǒng)裝置簡介 ..................................................................................................................... 4 液位過程建模 ..................................................................................................................... 7 建立過程數(shù)學(xué)模型的目的 ...........