本文選題：Halbach永磁陣列 + 無刷直流電機　； 參考：《電工技術(shù)學(xué)報》2017年16期

【摘要】：Halbach永磁陣列具有靈活配置電機氣隙磁通密度、磁屏蔽的特點,將其用于無刷直流電機以增加電磁轉(zhuǎn)矩、降低齒槽轉(zhuǎn)矩。在保角變換求解電磁場基礎(chǔ)上,給出無刷直流電機電磁轉(zhuǎn)矩與齒槽轉(zhuǎn)矩的解析計算模型,通過有限元仿真對該模型的準確性進行證明;使用該模型分析每極兩塊(1P2p)、每極三塊(1P3p)Halbach永磁陣列中主磁鋼弧角和輔磁鋼充磁方向角對無刷直流電機電磁轉(zhuǎn)矩與齒槽轉(zhuǎn)矩的影響,對比分析徑向充磁、平行充磁和Halbach永磁陣列的無刷直流電機電磁轉(zhuǎn)矩與齒槽轉(zhuǎn)矩隨永磁體厚度的變化規(guī)律。分析結(jié)果表明,合理配置無刷直流電機Halbach永磁陣列中主磁鋼弧角和輔磁鋼充磁方向角可提高電磁轉(zhuǎn)矩、降低齒槽轉(zhuǎn)矩,當(dāng)永磁體厚度增加時,Halbach永磁陣列更有利于電磁轉(zhuǎn)矩增加。
[Abstract]:Halbach permanent magnet array has the characteristics of flexible configuration of air gap flux density and magnetic shielding. It is used in brushless DC motor to increase electromagnetic torque and reduce slot torque. On the basis of conformal transformation to solve electromagnetic field, the analytical calculation model of electromagnetic torque and slot torque of brushless DC motor is given, and the accuracy of the model is proved by finite element simulation. The model is used to analyze the effects of the arc angle of main magnetic steel and the direction angle of magnetization of auxiliary magnetic steel on the electromagnetic torque and the grooving torque of brushless DC motor, and the radial magnetization is compared and analyzed. The variation of electromagnetic torque and grooving torque of brushless DC motor with parallel magnetization and Halbach permanent magnet array with the thickness of permanent magnet. The results show that the reasonable collocation of the main steel arc angle and the auxiliary magnetizing direction angle in the brushless DC motor Halbach permanent magnet array can increase the electromagnetic torque and reduce the tooth slot torque. When the thickness of permanent magnet increases, the Halbach permanent magnet array is more favorable for the increase of electromagnetic torque.
【作者單位】： 西北工業(yè)大學(xué)自動化學(xué)院;國防科學(xué)技術(shù)大學(xué)航天科學(xué)與工程學(xué)院;
【分類號】：TM33

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1 黃洪劍,林瑞光;無刷直流電機可靠性及其故障模式分析[J];電機與控制學(xué)報;2000年04期

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本文編號：1804934