【摘要】：結(jié)合了電機(jī)旋轉(zhuǎn)與軸承支撐功能的磁懸浮電機(jī)是國(guó)際高速化電機(jī)研發(fā)課題新的方向。其在我國(guó)也有著很廣闊的應(yīng)用前景,幾乎遍布制藥產(chǎn)業(yè)、化工產(chǎn)品、半導(dǎo)體產(chǎn)品、食品產(chǎn)業(yè),制造業(yè)等各個(gè)領(lǐng)域。積極開展磁懸浮電機(jī)的研發(fā)和實(shí)踐應(yīng)用也對(duì)交通能源、航空航天、軍工、農(nóng)工業(yè)生產(chǎn)和日常生活的各個(gè)范疇的發(fā)展都有著積極的現(xiàn)實(shí)意義和研究?jī)r(jià)值。感應(yīng)型磁懸浮電機(jī)是一種典型的機(jī)電一體化產(chǎn)品,其研究領(lǐng)域涉及到電機(jī)學(xué)、空氣動(dòng)力學(xué)、流體力學(xué)、電磁學(xué)和機(jī)電能量轉(zhuǎn)換等多學(xué)科的知識(shí),這毫無(wú)疑問(wèn)是極富挑戰(zhàn)性的研究課題。本文基于電磁軸承懸浮技術(shù)與傳統(tǒng)感應(yīng)電機(jī)原理,構(gòu)建了一種新型磁懸浮感應(yīng)電機(jī)。這種磁懸浮感應(yīng)有轉(zhuǎn)速快、結(jié)構(gòu)簡(jiǎn)單、體積小、較高的穩(wěn)定性和控制精度等優(yōu)點(diǎn)。另外,本文突出的一點(diǎn)是對(duì)磁懸浮感應(yīng)電機(jī)的氣隙壓力分布做了流體場(chǎng)的仿真研究。因?yàn)榈侥壳盀橹?對(duì)這方面的研究還局限于計(jì)算分析。 本文主要分為以下幾個(gè)部分： 1.介紹了磁懸浮電機(jī)的國(guó)內(nèi)外發(fā)展、研究現(xiàn)狀、應(yīng)用前景與發(fā)展趨勢(shì),提出了磁懸浮感應(yīng)電機(jī)的研究方向及意義； 2.首先提出了磁懸浮感應(yīng)電機(jī)的理論并對(duì)其加以論述闡明。其次以定、轉(zhuǎn)子氣隙分布數(shù)學(xué)模型為聯(lián)系對(duì)氣隙磁感應(yīng)強(qiáng)度、電磁轉(zhuǎn)矩、電磁懸浮力的數(shù)學(xué)模型進(jìn)行推導(dǎo)與建立。最后基于電感原理建立了磁鏈方程； 3.完成磁懸浮感應(yīng)電機(jī)的整體和相關(guān)主要結(jié)構(gòu)設(shè)計(jì),并對(duì)電機(jī)各結(jié)構(gòu)參數(shù)和性能進(jìn)行核算； 4.利用ANSOFT仿真軟件對(duì)某時(shí)刻轉(zhuǎn)子處于中心位置和轉(zhuǎn)子偏心情況下進(jìn)行電磁場(chǎng)仿真。同時(shí)用MATLAB擬合不同偏心下的仿真數(shù)據(jù),得到了懸浮力、轉(zhuǎn)矩、氣隙承載能力與偏心位移的關(guān)系。 5.基于氣體動(dòng)壓軸承理論,對(duì)不同偏心率和轉(zhuǎn)速下氣隙壓力分布情況做了Fluent仿真,并給定一微小擾動(dòng)量仿真氣隙壓力分布情況。對(duì)仿真數(shù)據(jù)進(jìn)行分析,得出了氣隙壓力與偏心率、轉(zhuǎn)速的關(guān)系同時(shí)計(jì)算出了氣隙在流體場(chǎng)作用下的承載能力。最后,結(jié)合氣隙磁場(chǎng)剛度和流體場(chǎng)氣隙剛度初步擬合總的氣隙承載能力。
[Abstract]:Maglev motor, which combines the function of motor rotation and bearing support, is a new direction in the research and development of high speed motor in the world. It also has a broad application prospect in China, almost all over the pharmaceutical industry, chemical products, semiconductor products, food industry, manufacturing and other fields. Active research and development and practical application of maglev motor also have positive practical significance and research value for the development of transportation energy, aerospace, military industry, agro-industrial production and daily life. Induction maglev motor is a typical mechatronics product. Its research field involves many subjects, such as electromechanics, aerodynamics, hydrodynamics, electromagnetism, electromechanical energy conversion and so on. This is undoubtedly a very challenging research topic. Based on the theory of electromagnetic bearing suspension and traditional induction motor, a new type of magnetic suspension induction motor is constructed in this paper. The magnetic levitation induction has the advantages of fast rotating speed, simple structure, small volume, high stability and control precision. In addition, the air gap pressure distribution of maglev induction motor is simulated. So far, the research has been limited to computational analysis. This paper is divided into the following parts: 1. This paper introduces the development of maglev motor at home and abroad, research status, application prospect and development trend, and puts forward the research direction and significance of maglev induction motor. 2. Firstly, the theory of magnetic levitation induction motor is put forward and expounded. Secondly, the mathematical models of magnetic induction intensity, electromagnetic torque and electric magnetic suspended buoyancy of air gap are deduced and established with the mathematical model of air gap distribution of stator and rotor. Finally, based on the inductance principle, the flux chain equation is established. Complete the whole and related main structure design of maglev induction motor, and calculate the structure parameters and performance of the motor; 4. ANSOFT software is used to simulate the electromagnetic field of the rotor in the center position and the rotor eccentricity at a certain time. At the same time, the simulation data of different eccentricity are fitted by MATLAB, and the relationship between suspension force, torque, air gap bearing capacity and eccentric displacement is obtained. Based on the theory of gas dynamic bearing, the air gap pressure distribution under different eccentricity and rotation speed is simulated by Fluent, and a small disturbance is given to simulate the air gap pressure distribution. By analyzing the simulation data, the relationship between air gap pressure, eccentricity and rotational speed is obtained, and the bearing capacity of air gap under the action of fluid field is also calculated. Finally, the total air gap bearing capacity is preliminarily fitted by combining the air gap magnetic field stiffness with the air gap stiffness of the fluid field.
【學(xué)位授予單位】：揚(yáng)州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM346

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本文編號(hào)：2233284