開關(guān)磁阻直線電機設(shè)計與分析研究
發(fā)布時間:2018-05-17 06:17
本文選題:開關(guān)磁阻直線電機 + 結(jié)構(gòu)參數(shù)分析; 參考:《中國礦業(yè)大學(xué)》2014年碩士論文
【摘要】:本文在分析總結(jié)直線電機發(fā)展現(xiàn)狀的基礎(chǔ)上,給出了旋轉(zhuǎn)電機演變?yōu)閳A筒直線電機的過程,并描述了開關(guān)磁阻直線電機的工作原理和基本物理方程。在Flux軟件平臺上搭建了單相開關(guān)磁阻直線電機的有限元計算模型,并對電機的結(jié)構(gòu)參數(shù)進行分析,得到了電機最大出力和平均出力分別隨著動子壁厚度、動子齒長度、動子內(nèi)徑、定子軛厚度及氣隙厚度變化的趨勢,總結(jié)出了電機結(jié)構(gòu)參數(shù)對電磁力的影響規(guī)律。分析了各向異性材料對電機出力的影響,仿真結(jié)果也說明了電機有限元分析時要把材料的各向同性設(shè)為假設(shè)條件的重要性。在Matlab/Simulink仿真平臺上,搭建了開關(guān)磁阻直線電機控制系統(tǒng)的非線性仿真模型,將有限元軟件計算得到的靜態(tài)磁鏈數(shù)據(jù)和磁共能數(shù)據(jù)導(dǎo)入查找表中,計算相電流和電磁力。在此基礎(chǔ)上,將仿真結(jié)果與硬件平臺實驗測試結(jié)果進行比照,結(jié)果表明,仿真結(jié)果與實驗結(jié)果基本吻合,驗證了仿真模型的可靠性,,并進一步證明了本文給出的設(shè)計方法是正確有效的。在本文所設(shè)計電機的基礎(chǔ)上指出了電機結(jié)構(gòu)進一步改進的方案:在電機內(nèi)部加入不導(dǎo)磁環(huán),將電機磁路分割為兩個小磁路,改進后電機的單位體積平均出力和單位重量平均出力明顯提高。最后,對全文工作進行了總結(jié),并指出了下一步工作的方向。
[Abstract]:On the basis of analyzing and summing up the development of linear motor, this paper presents the evolution process of rotating motor into cylinder linear motor, and describes the working principle and basic physical equation of switched reluctance linear motor. The finite element calculation model of single-phase switched reluctance linear motor is built on the platform of Flux, and the structural parameters of the motor are analyzed. The maximum output force and the average output force of the motor are obtained with the thickness of the moving sub-wall and the length of the moving tooth, respectively. The influence of motor structure parameters on electromagnetic force is summarized by the changing trend of rotor inner diameter stator yoke thickness and air gap thickness. The influence of anisotropic material on the motor force is analyzed. The simulation results also show the importance of using isotropy as a hypothetical condition in the finite element analysis of the motor. The nonlinear simulation model of switched reluctance linear motor control system is built on the Matlab/Simulink simulation platform. The static flux data and magnetic common energy data obtained by finite element software are imported into the lookup table to calculate the phase current and electromagnetic force. On this basis, the simulation results are compared with the experimental results of the hardware platform. The results show that the simulation results are in good agreement with the experimental results, and the reliability of the simulation model is verified. Furthermore, it is proved that the design method presented in this paper is correct and effective. On the basis of the motor designed in this paper, the paper points out the scheme of further improvement of the motor structure: adding an unmagnetic ring to the motor, dividing the motor magnetic circuit into two small magnetic circuits, After the improvement, the average output force per unit volume and average output force per unit weight of the motor are obviously increased. Finally, the paper summarizes the work and points out the direction of the next work.
【學(xué)位授予單位】:中國礦業(yè)大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2014
【分類號】:TM359.4
【參考文獻】
相關(guān)期刊論文 前3條
1 白鳳仙,孫建中;基于電磁場計算的開關(guān)磁阻電動機設(shè)計研究[J];電機技術(shù);2003年04期
2 岳廣照;鄧兆祥;來飛;;基于FLUX的直線電機建模及仿真分析[J];防爆電機;2010年03期
3 嚴加根;劉闖;嚴利;劉迪吉;;基于MATLAB的開關(guān)磁阻發(fā)電機系統(tǒng)的非線性建模與仿真[J];河海大學(xué)學(xué)報(自然科學(xué)版);2006年01期
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