用於輕型電動載具之雙邊型軸向磁通永磁同步馬達設計

Design of Double-Sided Axial Flux Permanent Magnet Synchronous Motor for Light Electric Vehicle

黃郁琁(Yuh-Shyuan Huang)

指導教授 ： 黃明熙

國立臺北科技大學/機電學院/電機工程系所/碩士(2013年)

https://doi.org/10.6841/NTUT.2013.00479

摘要

本文主要在研製一應用於輕型電動載具之高效能雙邊型軸向磁通永磁同步馬達，所提馬達於結構上由兩只軸向磁通永磁同步馬達並接。設計之重點為降低馬達輸出頓轉矩及提高輸出功率。另外，經由適當之接線及驅動電路設計可提高馬達於輕、中載效率及當一組馬達損害時該系統仍可運作以提系統之可靠度。研究重點區分為三部分:
(1)以三維有限元素分析法在有限輸入電壓及需求功率下進行磁路設計以達到提高功率密度及降低損失之目的，同時亦探討降低馬達頓轉轉矩之方法，最後利用轉子兩側磁石擺放位置角度錯開方式來降低頓轉轉矩。
(2)在兼顧結構強度與量測之考量下，進行馬達機構設計。
(3)探討兩只並接軸向磁通永磁同步馬達結線方式及驅動方式對馬達輸出性能的差異。
最後，對所研製之馬達進行功能測試以驗證設計之可行性，並分析設計與量測結果之差異原因做為未來研究之參考。

關鍵字

軸向磁通永磁同步馬達 ； 頓轉轉矩 ； 三維有限元素分析

並列摘要

The purpose of this research is to design a high efficiency double-sided axial flux permanent magnet (AFPM) synchronous motor for light electric vehicle, which has two AFPM motors in serial connection. This design focuses on larger power and less cogging torque. Moreover, using the suitable winding connection as well as the driver to promote the AFPM motor’s efficiency at light load and half load, which also be extremely helpful to whole system reliability, as one of the motors is inactive.
The key issues of this research are listed as followed.
1.Build a simulation model with suitable parameters in JMAG to verify the calculated results by 3D FEM. Determine the shifted angle to provide the smallest cogging torque by calculation.
2.Motor mechanism design takes account of the structure analysis and easy to experiment.
3.Discussing the difference between two AFPM motors in serial connection from winding structure and driving method for the performance.
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.

並列關鍵字

Axial Flux Permanent Magnetic Motor ； Cogging Torque ； 3D Finite Element Analysis

參考文獻

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