【摘要】：石油工業(yè)是一個(gè)國(guó)家經(jīng)濟(jì)建設(shè)的命脈產(chǎn)業(yè)，各國(guó)都在大力地發(fā)展石油工業(yè)。隨著現(xiàn)代科學(xué)技術(shù)的飛速發(fā)展，石油產(chǎn)業(yè)正向著集成化，自動(dòng)化，高效化的方向前進(jìn)。而石油開(kāi)采是石油工業(yè)中的一個(gè)重要環(huán)節(jié)，具有舉足輕重的地位。由于油井井下環(huán)境十分復(fù)雜，溫度與壓力對(duì)原油開(kāi)采的影響比較大，因此需要對(duì)整個(gè)過(guò)程加以控制。潛油電泵的基本結(jié)構(gòu)為潛油電機(jī)與離心泵串接，本文分別以潛油電機(jī)與離心泵為研究對(duì)象，建立雙閉環(huán)控制系統(tǒng)，并在此基礎(chǔ)上應(yīng)用無(wú)模型自適應(yīng)控制方法，達(dá)到進(jìn)一步提高系統(tǒng)性能的目的。 通過(guò)對(duì)無(wú)模型自適應(yīng)控制方法進(jìn)行深入研究，明確了其僅利用系統(tǒng)的輸入輸出信息進(jìn)行工作的特點(diǎn)。在此基礎(chǔ)上，從動(dòng)態(tài)線性化建模的三種方法入手，分別研究了基于不同方法的控制器。并通過(guò)實(shí)驗(yàn)的方式，總結(jié)出了控制參數(shù)的整定方法。并基于以上工作，設(shè)計(jì)了控制仿真實(shí)驗(yàn)，對(duì)三種無(wú)模型自適應(yīng)控制方案分別進(jìn)行應(yīng)用。將實(shí)驗(yàn)結(jié)果進(jìn)行對(duì)比，分析了三種方案的優(yōu)缺點(diǎn)。 潛油電泵的下泵深度多在2千米以上，受環(huán)境與電機(jī)自身因素的影響，電機(jī)溫度會(huì)發(fā)生較大變化。溫度變化會(huì)導(dǎo)致金屬的電阻率改變，造成電機(jī)的定轉(zhuǎn)子電阻值亦會(huì)發(fā)生變化。在控制系統(tǒng)中，被控對(duì)象的模型參數(shù)發(fā)生變化，屬于參數(shù)攝動(dòng)問(wèn)題。為了解決這一問(wèn)題，本文在分析了恒壓頻比控制方式的機(jī)械特性之后，建立潛油電機(jī)變頻調(diào)速系統(tǒng)模型，，具體分析了溫度變化對(duì)電阻的影響。在此基礎(chǔ)上，應(yīng)用之前設(shè)計(jì)的全格式動(dòng)態(tài)線性化無(wú)模型自適應(yīng)控制器，對(duì)潛油電機(jī)進(jìn)行控制，來(lái)減小溫度變化對(duì)系統(tǒng)調(diào)速性能影響。并通過(guò)實(shí)驗(yàn)驗(yàn)證了可行性與優(yōu)越性。 潛油電泵工作在高溫、高壓的復(fù)雜環(huán)境下，原油會(huì)在地層壓力的作用下向泵口移動(dòng)。在這一過(guò)程中，井底流壓會(huì)減小。若井底流壓低于原油中氣體的飽和壓力，則會(huì)導(dǎo)致大量的氣體析出與汽化。這對(duì)于離心泵來(lái)說(shuō)是十分危險(xiǎn)的。通過(guò)對(duì)潛油電泵的抽油量進(jìn)行控制可以維持井下壓力環(huán)境的平衡。本文分別對(duì)井下壓力系統(tǒng)與潛油電泵進(jìn)行分析并建立數(shù)學(xué)模型。考慮到壓力反饋信號(hào)中會(huì)存在噪聲干擾，因此在原始無(wú)模型自適應(yīng)算法的基礎(chǔ)上加入了抗干擾策略，提升控制效果，并通過(guò)實(shí)驗(yàn)驗(yàn)證其可行性。
[Abstract]:Petroleum industry is the lifeblood of a country's economic construction, all countries are vigorously developing petroleum industry. With the rapid development of modern science and technology, the petroleum industry is moving towards integration, automation and high efficiency. Oil production is an important link in the petroleum industry, with a pivotal position. Because the downhole environment is very complex and the influence of temperature and pressure on crude oil production is great, it is necessary to control the whole process. The basic structure of the submersible electric pump is that the submersible motor and the centrifugal pump are connected in series. This paper takes the submersible motor and the centrifugal pump as the research object, establishes the double closed loop control system, and then applies the modelless adaptive control method. To further improve the performance of the system. By studying the model-free adaptive control method, it is clear that it only uses the input and output information of the system to work. On this basis, starting with three methods of dynamic linearization modeling, the controllers based on different methods are studied respectively. The tuning method of control parameters is summarized by experiment. Based on the above work, the control simulation experiment is designed, and the three models-free adaptive control schemes are applied respectively. The experimental results are compared and the advantages and disadvantages of the three schemes are analyzed. The depth of the submersible electric pump is more than 2 km. The temperature of the submersible pump will change greatly because of the influence of the environment and the motor itself. The change of temperature will lead to the change of the resistivity of the metal and the change of the resistance of the stator and rotor of the motor. In the control system, the model parameters of the controlled object change and belong to the problem of parameter perturbation. In order to solve this problem, after analyzing the mechanical characteristics of the constant voltage frequency ratio control mode, the model of submersible motor variable frequency speed regulation system is established, and the influence of temperature change on resistance is analyzed in detail. On this basis, the full-format dynamic linearization model-free adaptive controller is used to control the submersible motor to reduce the effect of temperature change on the speed regulation performance of the system. The feasibility and superiority are verified by experiments. The submersible electric pump works in the complex environment of high temperature and high pressure, the crude oil will move to the pump mouth under the action of formation pressure. In this process, the bottom-hole flow pressure will decrease. If the bottom-hole flow depresses the saturation pressure of the gas in the crude oil, it will cause a large amount of gas to precipitate and vaporize. This is very dangerous for centrifugal pumps. By controlling the pumping capacity of submersible electric pump, the balance of downhole pressure environment can be maintained. In this paper, the underground pressure system and submersible pump are analyzed and mathematical models are established. Considering the noise disturbance in the pressure feedback signal, the anti-jamming strategy is added to the original model-free adaptive algorithm to improve the control effect, and the feasibility of the algorithm is verified by experiments.
【學(xué)位授予單位】：沈陽(yáng)工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TE938;TP273

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 陳振鋒;鐘彥儒;李潔;孫建平;曾禮;荊躍鵬;;轉(zhuǎn)子電阻變化對(duì)電力牽引感應(yīng)電機(jī)起動(dòng)轉(zhuǎn)矩的影響[J];電工技術(shù)學(xué)報(bào);2011年06期

2 孟大偉;劉宇蕾;張慶軍;徐永明;;潛油電機(jī)整體三維溫度場(chǎng)耦合計(jì)算與分析[J];電機(jī)與控制學(xué)報(bào);2010年01期

3 陳振鋒;鐘彥儒;李潔;;感應(yīng)電機(jī)參數(shù)辨識(shí)三種智能算法的比較[J];電機(jī)與控制學(xué)報(bào);2010年11期

4 王燕梅;;石油工業(yè)管理體制改革與市場(chǎng)機(jī)制的建立[J];國(guó)際石油經(jīng)濟(jì);2008年02期

5 王干一;吳春誠(chéng);吳相林;;玻璃窯爐的無(wú)模型自適應(yīng)控制[J];硅酸鹽通報(bào);2007年01期

6 張連山;電動(dòng)潛油離心泵的現(xiàn)狀與發(fā)展[J];國(guó)外石油機(jī)械;1997年05期

7 韓志剛，王德進(jìn);無(wú)模型控制器[J];黑龍江大學(xué)自然科學(xué)學(xué)報(bào);1994年04期

8 蔣愛(ài)平,李秀英,韓志剛;從PID到無(wú)模型控制器[J];控制工程;2005年03期

9 衛(wèi)才望;李虹;;汽包水位的無(wú)模型自適應(yīng)控制研究[J];控制工程;2010年S2期

10 王倩;張巖;;潛油電泵井生產(chǎn)系統(tǒng)優(yōu)化設(shè)計(jì)方法[J];科學(xué)技術(shù)與工程;2011年26期

相關(guān)博士學(xué)位論文 前4條

1 卜旭輝;數(shù)據(jù)驅(qū)動(dòng)無(wú)模型自適應(yīng)控制與學(xué)習(xí)控制的魯棒性問(wèn)題研究[D];北京交通大學(xué);2011年

2 張明功;中國(guó)石油工業(yè)未來(lái)發(fā)展戰(zhàn)略研究[D];中國(guó)地質(zhì)大學(xué)(北京);2012年

3 金尚泰;無(wú)模型學(xué)習(xí)自適應(yīng)控制的若干問(wèn)題研究及其應(yīng)用[D];北京交通大學(xué);2008年

4 董振剛;潛油電泵機(jī)組狀態(tài)監(jiān)測(cè)與辨識(shí)方法研究[D];哈爾濱工程大學(xué);2009年

本文編號(hào)：2381284