由於軸向磁通永磁同步馬達具有高功率密度、散熱容易、傳動機構連結簡單與容易串接擴大輸出功率等優點,近年來逐漸成為高階輕型電動載具之動力源主流。本研究首先依據輕型電動載具之需求動力規格、重量、體積與安置方式等限制,初步設定馬達規格並估算磁通密度、輸出轉矩與效率是否落在合理範圍,隨後以3維有限元素磁路分析軟體進行馬達細部參數設計並搭配機構設計進行相關參數之微調。為分析3維有限元素磁路設計與實際製作結果之差異,因此定子採用簡易非連續模具沖壓製造,並於馬達組立前皆進行量測以確保機械公差落入設計範圍內。 最後,對組立完成之馬達進行相關參數量測並以驅動器進行加載測試,量測結果確認所研製之AFPM馬達符合預定設計值。
In recent years, the axial flux permanent magnetic motor has become the propulsion system of high-end light electric vehicles due to its high efficiency, better heat dissipation, simple transmission structure and easy cascaded connection to expend the power capacity. In this study, the specifications of the AFPM motor are determined first according to the requirements of LEV, such as power, limitations of weight and volume and installed position. Then, the flux density, output torque and efficiency are calculated to decide whether or not these parameters can be in reasonable range. When finishing the mechanical design of the AFPM motor, the electrical and magnetic parameters are carefully designed and confirmed using the 3D FEM analysis software JMAG. In order to distinguish the difference between 3d FEM design values and measured results, the stator is manufactured by non-continuous mold pressing. Before assembling the motor, all the mechanical parts are carefully measured to make sure that all the major dimensions are within in the acceptable tolerance. Finally, the electrical parameters are measured and a motor drive is added to verify loading effect of the AFPM motor. The tested results show that the AFPM motor meets the predetermined specifications.