【摘要】：結(jié)合了電機旋轉(zhuǎn)與軸承支撐功能的磁懸浮電機是國際高速化電機研發(fā)課題新的方向。其在我國也有著很廣闊的應用前景,幾乎遍布制藥產(chǎn)業(yè)、化工產(chǎn)品、半導體產(chǎn)品、食品產(chǎn)業(yè),制造業(yè)等各個領(lǐng)域。積極開展磁懸浮電機的研發(fā)和實踐應用也對交通能源、航空航天、軍工、農(nóng)工業(yè)生產(chǎn)和日常生活的各個范疇的發(fā)展都有著積極的現(xiàn)實意義和研究價值。感應型磁懸浮電機是一種典型的機電一體化產(chǎn)品,其研究領(lǐng)域涉及到電機學、空氣動力學、流體力學、電磁學和機電能量轉(zhuǎn)換等多學科的知識,這毫無疑問是極富挑戰(zhàn)性的研究課題。本文基于電磁軸承懸浮技術(shù)與傳統(tǒng)感應電機原理,構(gòu)建了一種新型磁懸浮感應電機。這種磁懸浮感應有轉(zhuǎn)速快、結(jié)構(gòu)簡單、體積小、較高的穩(wěn)定性和控制精度等優(yōu)點。另外,本文突出的一點是對磁懸浮感應電機的氣隙壓力分布做了流體場的仿真研究。因為到目前為止,對這方面的研究還局限于計算分析。 本文主要分為以下幾個部分： 1.介紹了磁懸浮電機的國內(nèi)外發(fā)展、研究現(xiàn)狀、應用前景與發(fā)展趨勢,提出了磁懸浮感應電機的研究方向及意義； 2.首先提出了磁懸浮感應電機的理論并對其加以論述闡明。其次以定、轉(zhuǎn)子氣隙分布數(shù)學模型為聯(lián)系對氣隙磁感應強度、電磁轉(zhuǎn)矩、電磁懸浮力的數(shù)學模型進行推導與建立。最后基于電感原理建立了磁鏈方程； 3.完成磁懸浮感應電機的整體和相關(guān)主要結(jié)構(gòu)設(shè)計,并對電機各結(jié)構(gòu)參數(shù)和性能進行核算； 4.利用ANSOFT仿真軟件對某時刻轉(zhuǎn)子處于中心位置和轉(zhuǎn)子偏心情況下進行電磁場仿真。同時用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.基于氣體動壓軸承理論,對不同偏心率和轉(zhuǎn)速下氣隙壓力分布情況做了Fluent仿真,并給定一微小擾動量仿真氣隙壓力分布情況。對仿真數(shù)據(jù)進行分析,得出了氣隙壓力與偏心率、轉(zhuǎn)速的關(guān)系同時計算出了氣隙在流體場作用下的承載能力。最后,結(jié)合氣隙磁場剛度和流體場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.
【學位授予單位】：揚州大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM346

【參考文獻】

相關(guān)期刊論文 前10條

1 鄧智泉,嚴仰光;無軸承交流電動機的基本理論和研究現(xiàn)狀[J];電工技術(shù)學報;2000年02期

2 馬濤;戴惠良;劉思仁;;基于FLUENT的液體動靜壓軸承數(shù)值模擬[J];東華大學學報(自然科學版);2010年03期

3 鄧智泉,何禮高,嚴仰光;無軸承交流電機的原理及應用[J];機械科學與技術(shù);2002年05期

4 田興麗,王培俊,吳鹿鳴;用MATLAB求解動靜壓混合軸承的承載能力[J];機械設(shè)計與制造工程;2002年05期

5 陳保進,朱q，

本文編號：2233284