臺灣博碩士論文加值系統

本文的研究目的為設計電動機車的輪外馬達，依據電動機車的需求訂定馬達規格而進行設計。內藏式永磁馬達的結構強健，適合高速運轉，且d-q軸的電感差異大使得磁阻轉矩提升，弱磁控制效果佳，使馬達的可操作轉速範圍延伸，也較不容易發生退磁的現象。本文依據電動機車的馬達規格需求，依序挑選馬達的類型、繞線方式、槽數與極數，以及繞線規劃，並利用磁路模型求解氣隙磁通密度，進一步求得馬達的轉矩、反電動勢、效率等性能，再以多目標函數的最佳化，得到一組最佳的馬達參數尺寸，並且利用有限元素分析軟體進行驗證，以及細部參數的最佳化設計，並估測馬達性能曲線與效率分布。最後進行製造與測試，並根據實驗數據結果加以討論。

In this thesis, an interior permanent magnet (IPM) motor is designed based on specifications for electric scooters. IPM motors are robust and capable of operating at high motor efficiency over a wide range of speeds. In addition, the q-axis inductance is greater than the d-axis inductance because of the rotor geometry. As a result, reluctance torque can be generated, making the magnet highly resistant to demagnetization. In addition, the flux-weakening control, implemented by leading the input current phase, also increases the motor speed.First, the preliminary design determines the motor type, winding type, and the number of slots and poles. Second, a two-dimensional (2-D) magnetic circuit model for IPM motors is constructed by using the motor design equations, and the electromagnetic equations were established for an optimal motor design with a multifunctional optimizer. Finally, the optimal design result is verified by experiments on a prototype machine.

中文摘要 i
Abstract ii
目錄 iii
圖目錄 v
表目錄 x
符號表 xi
第一章 緒論 1
1.1 研究背景 1
1.2 研究目標 1
1.3 文獻回顧 3
1.4 論文章節架構 7
第二章 初步設計 8
2.1 設計流程 8
2.2 設計規格 8
2.3 馬達類型 9
2.4 繞線方式 11
2.5 槽數與極數 13
2.6 繞線規劃 15
第三章 永磁無刷馬達基礎理論 17
3.1 基本磁路模型 17
3.2 內藏式永磁馬達磁路模型 22
3.3 d-q軸數學模型 35
第四章 最佳化設計 53
4.1 靈敏度分析 53
4.2 多目標函數最佳化 70
第五章 有限元素分析 73
5.1 有限元素分析工具 73
5.2 有限元素法參數設計 79
5.3 性能分析 93
5.4 弱磁性能分析 97
第六章 製造與測試 103
6.1 製造與組裝 103
6.2 測試 105
6.3 實驗結果討論 111
第七章 結論 113
7.1 本文結論 113
7.2 未來展望 113
參考文獻 115
附錄A 漆包線規格 121
附錄B 矽鋼片鐵損特性 122
附錄C 磁鐵規格 123
附錄D 工程圖 124
附錄E 馬達參數 128

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