【正文】
,其執(zhí)行機構(gòu)是固態(tài)繼電器。連續(xù)燒結(jié)爐的燒結(jié)質(zhì)量取決于溫度的均勻性和燒結(jié)過程的穩(wěn)定性,~連續(xù)燒結(jié)爐的溫度控制系統(tǒng)是一個大時滯、非穩(wěn)定、非線性復雜系統(tǒng),燒結(jié)溫度也受到外部因素的影響,如爐門開關(guān)、燃氣流量。 2008年國際計算機、電子工程會議基于智能PID調(diào)節(jié)的連續(xù)燒結(jié)爐溫度控制系統(tǒng)曹樹坤,張亞蘭,張亨 (濟南大學機械工程學院2.外文文獻翻譯的字數(shù):非英語專業(yè)學生應完成與畢業(yè)設計/論文課題內(nèi)容相關(guān)的不少于2000漢字的外文文獻翻譯任務(其中,漢語言文學專業(yè)、藝術(shù)類專業(yè)不作要求),英語專業(yè)學生應完成不少于2000漢字的二外文獻翻譯任務。通過在線實時設置智能指令單元, 該系統(tǒng)可以達到2‰的溫度控制精度目標。但該算法在燒結(jié)爐溫度控制系統(tǒng)中具有一定的局限性,該燒結(jié)爐溫度控制系統(tǒng)具有大慣性、純延遲, 非線性、時變特性,以及由此帶來的折射出爐子過度控制和動態(tài)性能不穩(wěn)定。針對燒結(jié)爐的每個溫度段和每個溫度點僅僅采用智能PID控制。增長的值可以減少靜態(tài)錯誤,但是過大的值會導致系統(tǒng)動態(tài)性能變差。規(guī)則2:IF ︱︳ THEN =。停止位:1;數(shù)據(jù)位:8;校驗位:無。讀和寫參數(shù)的數(shù)據(jù)格式是相似的。5 總結(jié)隨著智能控制原理的發(fā)展,PID控制技術(shù)已越來越成熟,智能PID算法是非線性的,這種非線性能被用來克服傳統(tǒng)PID的限制。 leishi。 parity bits: none. XMT624 defines input, output and state parameters, and assigns the address. The main parameters as listed in Table 1: With the development of intelligent control theory, PID control technology is more and more mature. The intelligent PID algorithm is nonlinear, which can be used to conquer the limitation of the traditional PID. The rule 1 and rule 2 can make the system fast.Three basic parameters of the PID controller can be directly read and wrote in the corresponding address through the PC interface, so it is controlled expediently. When read and write parameters, firstly, we should know the parameters’ code. The reading parameters’ code is 03 and the writing parameters code is 10H. For example, reading measurements PV, the data format sent by the main frame is shown as Table 2: The first address in the data format is the XMT624’s address. The second address is the PV’s EMS memory address. If it reads the ratio factor P, it changes the second address to EMS memory address1004H is OK. The reading and writing parameters’ data format is similar. And it needs to change the functional code to the writing parameters’ functional code 10H.Three basic parameters of PID are interaction and mutual constraints and are restricted by the physical environmental factors. So it should decide the eclectic choice between the material circs and control requires. Some instance in actual use can be adjusted as follows:(1) The temperature reaches target very quickly, but the temperature overshoot is great: consider reducing proportions coefficients or increasing differential coefficient time.(2) The temperature often fails to the target and the time is great: consider increasing the proportions coefficients or integral time.(3) It can fluctuate at the basic control goals, but deviation is oversize, and it is often volatile: consider increasing differential coefficient or reducing integral time, and the work cycle may be set shorter.(4) It is affected greatly by the surrounding environment or the weather changes. Little change will cause some changes in the temperature fluctuations: consider increase differential coefficient or shorten the cycle time.5. ConclusionsWith the development of intelligent control theory, PID control technology is more and more mature. The intelligent PID algorithm is nonlinear, which can be used to conquer the limitation of the traditional PID. The rule 1 and rule 2 can make the system fast and stability, and the rule 3 makes the PID adaptive capability with the variable parameters. It realizes the parameters of PID setting online through programming, and increases system control accuracy. With intelligent PID control,