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temperature control. This method economical, simple, easy to operate, the control precision is high. What is most main: Grasps using the laboratory existing equipment designs the work which a control system , the more profound understanding design control system39。s temperature control appeared especially important, established a control system first to aim at the controlled member to conduct the research. This design39。s swift development, the control theory is unceasingly rich and is perfect, the control technology also to the intellectualization, openness, the redundant reliable direction develops. At present the monly used control mode has the intellectualized measuring appliance, PLC, DCS, they may pose each kind of control system to satisfy the technique of production the request. Its function is getting more and more formidable, the performance to be getting more and more perfect, and has the control precision to be high, antijamming ability is strong, What the explosionproof strong and so on characteristic this article studies is resistance furnace39。 關鍵詞: 電阻爐; 對象 特性測試;控制系統(tǒng); PWM; 調節(jié)器 ) II Resistance furnace temperature control system Abstract Along with science39。這種方法經(jīng)濟、簡單、易操作,控制精度高。建立一個控制系統(tǒng)首先要針對控制對象進行研究 , 本設計的研究對象是實驗室現(xiàn)有的管式電阻爐,因此本文對其 進行了對象性能測試。其 功能 越來越強大、性能 也 越來越完善,并具有 控制精度 高 、抗干擾能力 強 、防爆性 強 等 特點 。 1 題 目: 電阻爐溫度控制系統(tǒng)設計 ) I 電阻爐溫度控制系統(tǒng)設計 摘 要 隨著 科學 技術 的飛速發(fā)展,控制 理論不斷豐富和完善,控制技術也在向 智能化、開放性、 高 可靠性的方向發(fā)展 。 目前常用的控制 方式 有 智能化儀表、 PLC、 DCS,它們可組成各種控制系統(tǒng)以滿足不同 的 控制 要求。 本文研究的是電阻爐的溫度控制系統(tǒng),由于電阻爐在生產(chǎn)和生活中的應用比較廣泛,所以電阻爐的溫度控 制就顯得尤為重要了。然后針對電阻爐的特點,提出了利用數(shù)字調節(jié)器、固態(tài)繼電器等器件組成溫度控制系統(tǒng),通過調節(jié)參數(shù)實現(xiàn)對電阻爐溫度的控制。最主要的是: 學會了 利用實驗室現(xiàn)有的設備去掌握設計一個控制系 統(tǒng) ,更深刻的理解設計控制系統(tǒng)的思想,為以后的學習、工作打下了堅實的基礎。s and technology39。s temperature control system, because resistance furnace in prod uces and in the life application is quite widespread, therefore resistance furnace39。s object of study is the laboratory existing tubular resistance furnace, therefore this article has carried on the object performance test to it. Then in view of resistance furnace39。s thought that for the later study, the work has built the solid foundation. Key word: resistance furnace; characteristics of the test object; control system; PWM;regulator 內蒙古科技大學畢業(yè)設計 說明書(畢業(yè) 論文 ) III 目錄 摘 要 .........................................................................................................................................I Abstract ...................................................................................................................................... II 目錄 .......................................................................................................................................... III 第一章 引言 .............................................................................................................................. 1 電阻爐的概述 .............................................................................................................. 1 電阻爐溫度控制系統(tǒng)的應用與發(fā)展 .......................................................................... 2 第二章 電阻爐的溫度控制系統(tǒng)設計概述 .............................................................................. 4 總體方案設計 ............................................................................................................. 4 設計要求 ..................................................................................................................... 4 設計原理 ..................................................................................................................... 4 第三章 電阻爐溫度特性的測試、記錄及分析 ...................................................................... 6 電阻爐溫度特性測試 ................................................................................................. 6 對象特性測試中所用儀表 .............................................................................. 6 對象特性測試原理 .......................................................................................... 6 進行溫度特性曲線測試的儀器儀表的接線圖 .............................................. 6 溫 度特性曲線的記錄與分析 ..................................................................................... 8 溫度特性曲線的記錄 ...................................................................................... 8 溫度特性曲線試驗結果的數(shù)據(jù)處理的方法 .................................................. 9 溫度特性曲線數(shù)據(jù)處理 ................................................................................ 14 第四章 電阻爐溫度控制系統(tǒng)的設計 .................................................................................... 17 電阻爐溫度控制系統(tǒng)的實現(xiàn)過程 ........................................................................... 17 電 阻爐溫度控制系統(tǒng)的系統(tǒng)方框圖及調節(jié)過程 ........................................ 17 儀器儀表介紹 ................................................................................................ 17 第五章 電阻爐溫度控制系統(tǒng)的參數(shù)整定及系統(tǒng)調試 ........................................................ 31 內蒙古科技大學畢業(yè)設計 說明書(畢業(yè) 論文 ) IV 溫度控制系統(tǒng)的實現(xiàn)線路 ....................................................................................... 31 系統(tǒng)的連線框圖 ............................................................................................ 31 系統(tǒng)的連接線路及 自動控制過程 ................................................................ 31 PID 調節(jié)器及其參數(shù)的整定 ..................................................................................... 31 P、 I、 D 各運算規(guī)律的作用 .......................................................................... 31 PID 參數(shù)的整定方法 ...................................................................................... 35 系統(tǒng)的 PID 整定結果及分析 ........................................................................ 38 總結 .......................................................................................................................................... 40 參考文獻 .............................................................................................................