輪轂多盤式無鐵心永磁同步電機(jī)永磁體結(jié)構(gòu)優(yōu)化
劉福貴，王彥剛，陳玉民，楊乾坤
（河北工業(yè)大學(xué) 電磁場與電器可靠性省部共建重點(diǎn)實(shí)驗(yàn)室，天津 300130）
摘 要：將不等厚排列技術(shù)與90°Halbach 陣列以及不等寬排列技術(shù)相結(jié)合應(yīng)用到兩個(gè)外轉(zhuǎn)子磁鋼分析，中間盤采用普通磁鋼排列，通過改變磁鋼排列的厚度及寬度，來進(jìn)一步提高多盤式無鐵心永磁同步電機(jī)氣隙磁密的基波幅值和波形的正弦性，從而提高電機(jī)性能。對16 極盤式永磁同步電機(jī)進(jìn)行仿真建模，將“不等寬排列技術(shù)+ 90°Halbach 陣列”模型以及其優(yōu)化模型“不等厚排列技術(shù)+ 90°Halbach 陣列+ 不等寬排列技術(shù)”進(jìn)行靜態(tài)氣隙磁場對比分析。仿真數(shù)據(jù)表明，“不等厚排列技術(shù)+ 90°Halbach 陣列+ 不等寬排列技術(shù)”使得周向磁密波形和切向磁密波形都大為改善，磁場波形更接近于正弦分布特征，其中周向磁密波形畸變率改善了67.02%，氣隙周向磁密幅值提高了8.15%。
關(guān)鍵詞：輪轂多盤式無鐵心永磁同步電機(jī)；永磁體排列結(jié)構(gòu)；有限元仿真；氣隙磁密；不等厚排列；90°Halbach 陣列；不等寬排列
中圖分類號：TM341 文獻(xiàn)標(biāo)識碼：A 文章編號：1007-3175(2016)10-0025-06
Permanent Magnet Structure Optimization in Coreless
Permanent Magnet Synchronous Motor with
Wheel Hub Multiple-Disc
LIU Fu-gui, WANG Yan-gang, CHEN Yu-min, YANG Qian-kun
（Province-Ministry Joint Key Laboratory of Electromagnetic Field and Electrical
Apparatus Reliability, Hebei University of Technology,Tianjin 300130, China）
Abstract: Analysis was made to the application of the combination of different thickness array technology, 90°Halbach array and different breadth array technology in two outer rotor magnetic steel. The telophragma adopted the common magnetic steel array, whose thickness and breadth were changed to further improve the fundamental current amplitude and wavelike sine performance of coreless permanent magnet synchronous motor with wheel hub multiple-disc, so that the performance of the motor was improved. The sixteen poles disc permanent magnet synchronous motor was carried out simulation and modeling and this paper analyzed the model of different breadth array technology with 90° Halbach array and its optimization model, the different thickness array technology with 90° Halbach array and different breadth array technology was carried out static state air-gap field contrastive analysis. The simulation data show that the optimization model makes the axial and tangential magnetic flux density waveform improved, the magnetic field waveforms are more close to the sine distribution characteristics, where the circumferential flux density waveform distortion rate is improved by 67.02% and the tangential air-gap flux density amplitude value is increased by 8.15%.
Key words: coreless permanent magnet synchronous motor with wheel hub multiple-disc; permanent magnet array structure; finite element; gas flux density; different thickness array; 90 degree Halbach array; different breadth array
參考文獻(xiàn)
[1] NAIR S S, NALAKATH S, DHINAGAR S J.Design and analysis of axial flux permanent magnet BLDC motor for automotive applications[C]//IEEE International Electric Machines & Drives Conference，2011:1615-1618.
[2] AYDIN M, GULEC M.Reduction of Cogging Torque in Double-Rotor Axial-Flux Permanent-Magnet Disk Motors: A Review of Cost-Effective Magnet-Skewing Techniques with Experimental Verification[J].IEEE Transactions on Industrial Electronics，2014，61(9)：5025-5034.
[3] LI J G, WU D Y, ZHANG X D, et al.A new permanent-magnet vernier in-wheel motor for electic vehicles[C]//IEEE Vehicle Power and Propulsion Conference，2010：1-6.
[4] HUANG C C, LI P L, CHUANG F C, et al.Optimization for Reduction of Torque Ripple in an Axial Flux Permanent Magnet Machine[J].IEEE Transactions on Magnetics，2009，45(3)：1760-1763.
[5] 方淑丹. 永磁直流電動(dòng)機(jī)不等厚瓦形磁鋼的設(shè)計(jì)[J]. 微特電機(jī)，1999，27(1)：15-18.
[6] 劉超，孫立志，孫力. 永磁同步伺服電動(dòng)機(jī)氣隙磁場優(yōu)化設(shè)計(jì)[J]. 微電機(jī)，2010，43(11)：24-27.
[7] 金友華，王宏偉. 基于Ansoft優(yōu)化永磁同步電機(jī)氣隙磁密[J]. 微電機(jī)，2013，46(12)：84-87.
[8] 孫程英. 不同結(jié)構(gòu)永磁同步電機(jī)的磁場分析[D].北京：華北電力大學(xué)，2008.
[9] 閆杰. 盤式無鐵心永磁同步電機(jī)磁場分析及磁鋼結(jié)構(gòu)優(yōu)化[D]. 天津：天津大學(xué)，2004.
[10] BUMBY J R, MARTIN R.Axial-flux permanentmagnet air-cored generator for small-scale wind turbines[J].IEE Proceedings-Electric Power Applications，2005，152(5)：1065-1075.
[11] 李桂丹，于海峰，王曉遠(yuǎn)，等. 基于Halbach 陣列的盤式無鐵心永磁同步電機(jī)磁鋼優(yōu)化[J]. 微電機(jī)，2015，48(2)：1-6.
[12] 謝龍漢，耿煜，邱婉.ANSYS 電磁場分析[M]. 北京：電子工業(yè)出版社，2012.
[13] CAPPONI F G, DONATO G D, CARICCHI F.Recent Advances in Axial-Flux Permanent-Magnet Machine Technology[J].IEEE Transactions on Industry Applications，2012，48(6)：2190-2205.
