本文選題：相關(guān)積分　切入點(diǎn)：帶約束優(yōu)化　出處：《北京化工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：現(xiàn)如今,在生產(chǎn)工藝不斷改進(jìn)的同時(shí),對(duì)于整個(gè)過程控制的水平要求也日益提高。對(duì)于工業(yè)過程的操作優(yōu)化,可以不改變?cè)械墓I(yè)裝置,僅僅通過改變其操作條件實(shí)現(xiàn)對(duì)裝置的優(yōu)化,進(jìn)而可以達(dá)到提高設(shè)備利用率、提高產(chǎn)量、增加效益的效果。一般的操作調(diào)優(yōu)方法包括數(shù)學(xué)建模法和在線搜索法,但是一般這兩種方法都有機(jī)理復(fù)雜建模困難、抗干擾性較差等問題。相關(guān)積分優(yōu)化方法把目標(biāo)函數(shù)及其調(diào)優(yōu)變量都看作動(dòng)力學(xué)系統(tǒng)進(jìn)行處理,并把調(diào)優(yōu)變量設(shè)置為均值可控的隨機(jī)變量,因此無需建模便可實(shí)現(xiàn)對(duì)工業(yè)過程的操作調(diào)優(yōu)且具有較強(qiáng)的抗干擾性。因此,本文對(duì)相關(guān)積分優(yōu)化方法做了深入的研究,具體的研究內(nèi)容如下所述：首先,本文研究了相關(guān)積分方法的基本原理及其遞推優(yōu)化過程,以及相關(guān)積分優(yōu)化方法的優(yōu)點(diǎn)及其適用條件。在原來的相關(guān)積分方法的基礎(chǔ)上,提出了一種新的罰函數(shù)方法將輸入輸出約束加入到相關(guān)積分方法中去,實(shí)現(xiàn)在滿足約束輸入輸出范圍的條件下對(duì)工業(yè)過程操作調(diào)優(yōu),并對(duì)這種雙曲罰函數(shù)的收斂性和可行性做了證明,為下文對(duì)工業(yè)過程的操作調(diào)優(yōu)奠定了基礎(chǔ)。其次本文將加約束的相關(guān)積分優(yōu)化方法運(yùn)用到碳二加氫反應(yīng)器中。先介紹了碳二加氫反應(yīng)器的反應(yīng)流程,一般的碳二加氫反應(yīng)器的操作調(diào)優(yōu)方法并用相關(guān)積分優(yōu)化方法實(shí)現(xiàn)了對(duì)碳二加氫反應(yīng)器的操作調(diào)優(yōu),很好的解決了中石化某烯烴廠碳二加氫反應(yīng)器存在的過加氫現(xiàn)象,提高了產(chǎn)品質(zhì)量。最后,介紹了噪聲種類對(duì)相關(guān)積分優(yōu)化方法的影響,先是介紹了相關(guān)積分方法的強(qiáng)抗干擾能力,然后將基于核主元分析的相關(guān)積分方法運(yùn)用到包含有色噪聲系統(tǒng)的操作調(diào)優(yōu)中去,能夠保證系統(tǒng)梯度收斂到真實(shí)值附近,并可實(shí)現(xiàn)對(duì)系統(tǒng)的操作調(diào)優(yōu)。
[Abstract]:Nowadays, while the production process is constantly improving, the level of control of the whole process is also increasingly required. For the optimization of the operation of the industrial process, it is possible not to change the original industrial plant. Only by changing its operating conditions, the device can be optimized, and the efficiency of equipment utilization, output and efficiency can be increased. The general operation optimization methods include mathematical modeling and online search. However, in general, these two methods have some problems such as complex modeling mechanism, poor anti-interference and so on. The objective function and its tuning variables are treated as dynamic systems by the correlation integral optimization method. The tuning variable is set as the random variable with controllable mean value, so the optimization of the industrial process can be realized without modeling and has strong anti-interference. Therefore, the related integral optimization method is deeply studied in this paper. The specific research contents are as follows: firstly, this paper studies the basic principle and recursive optimization process of the correlation integral method, as well as the advantages and applicable conditions of the correlation integral optimization method. In this paper, a new penalty function method is proposed, which adds input and output constraints to the relevant integral method, and optimizes the operation of industrial processes under the condition that the input and output range of constraints is satisfied. The convergence and feasibility of the hyperbolic penalty function are proved. It lays a foundation for the following operation optimization of industrial process. Secondly, this paper applies the constrained integral optimization method to the carbon 2 hydrogenation reactor. Firstly, the reaction process of the carbon 2 hydrogenation reactor is introduced. The general operation optimization method of carbon 2 hydrogenation reactor and the correlation integral optimization method are used to optimize the operation of carbon 2 hydrogenation reactor, which solves the phenomenon of over hydrogenation of carbon 2 hydrogenation reactor in a certain olefins plant of Sinopec. Finally, the influence of noise type on the correlation integral optimization method is introduced, first of all, the strong anti-interference ability of the correlation integral method is introduced. Then the correlation integral method based on kernel principal component analysis is applied to the operation optimization of the system with colored noise, which can ensure the gradient of the system converge to the real value and realize the operational tuning of the system.
【學(xué)位授予單位】：北京化工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TQ018

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