電阻爐溫度控制系統(tǒng)設(shè)計(jì)與實(shí)現(xiàn)畢業(yè)論文-展示頁
2025-01-22 14:59本頁面
【正文】 對(duì)應(yīng)的傳遞函數(shù)為： ()這種近似方法擬合精度較差但方法簡單，但方法簡便，而且實(shí)踐表明它可以成功地應(yīng)用于PID調(diào)節(jié)器的參數(shù)整定。 PID adjustment principle。關(guān)鍵詞：電阻爐；PID；單回路控制系統(tǒng) Design and Realize Temperature Control System of Resistance FurnaceAbstractTemperature is one of mon and the most basic parameters in the industrial production. General physical and chemical changes have a close relationship with temperature, as a result, generally speaking, it is necessary to detect and monitor temperature during production.Type resistance furnace of laboratory is such a temperature object that has a bigger pure lagging and a temperature constant, the design chooses a PID adjustment principle. According to the control precise of design requirements, the design chooses a single circuit controlling system. The design chooses two design plans: of which the first one is a DDZIII instrumentbased control system, in which an open loop system is made up of to survey the features of the temperature object, with which calculate the control parameters of the PID controller, and after a close loop control system is made pletely, it is necessary to adjust the parameters of the PID controller manually to get the best parameters for PID。所以第二套方案實(shí)施更為簡單方便，控制精度更高，所組成的系統(tǒng)也更加可靠。在做成閉環(huán)控制系統(tǒng)之后，還需要手動(dòng)調(diào)節(jié)PID參數(shù)，使PID參數(shù)達(dá)到最優(yōu)。根據(jù)設(shè)計(jì)要求的控制精度選擇了單回路控制系統(tǒng)。 電阻爐溫度控制系統(tǒng)設(shè)計(jì)與實(shí)現(xiàn)摘 要溫度是工業(yè)生產(chǎn)中常見的和最基本的參數(shù)之一，一般物理變化和化學(xué)變化的過程都與溫度密切相關(guān)，因此生產(chǎn)過程中常需對(duì)溫度進(jìn)行檢測和監(jiān)控。實(shí)驗(yàn)室的回轉(zhuǎn)式電阻爐是一個(gè)具有較大純滯后和時(shí)間常數(shù)的溫度對(duì)象的特點(diǎn)，本設(shè)計(jì)根據(jù)這個(gè)特點(diǎn)選擇了PID調(diào)節(jié)規(guī)律。本設(shè)計(jì)選用了兩套設(shè)計(jì)方案，第一套方案是基于DDZ—Ⅲ型儀表設(shè)計(jì)的控制系統(tǒng)，在第一套方案中先組成開環(huán)系統(tǒng)測量溫度對(duì)象特性，并根據(jù)對(duì)象特性計(jì)算出PID控制器的控制參數(shù)。第二套是基于數(shù)字儀表PID調(diào)節(jié)器設(shè)計(jì)的控制系統(tǒng)。由于兩套設(shè)計(jì)方案的控制系統(tǒng)及控制規(guī)律一致，故在本設(shè)計(jì)中主要介紹了第一套方案。 the second one i
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