本論文的研究內容在於使用有限元素模擬軟體FLUX 2D，修改三相永磁發電機鐵心以及永久磁石之材料特性、尺寸、結構等參數，以達到提升三相永磁發電機整體運轉效率之目標。
本論文中將對三相永磁發電機：(a)鐵心及永久磁石之磁化特性、尺寸做改良；(b)連接不同電阻性負載及整流電路特性之影響；(c)在不同轉速下之電壓、電流、輸出功率、效率及諧波的影響；(d)在特殊故障下的影響；(e)整體運轉效率的影響等為研究項目。
在本論文中，將以FLUX 2D軟體建構永磁發電機之幾何圖形，並調整各種不同的電機參數，例如永磁發電機厚度、定子齒尖長度、定子材料、永久磁石材料、定子與轉子之間的氣隙長度等，以求出最高效率的改良尺寸及材料數據，未來可利用這些重要的參考資料來生產高品質、高效率、低鐵損特性之三相永磁發電機。

The aim of this thesis is to modify the size, structure, and material characteristics of iron core and permanent magnet of a three-phase permanent-magnet generator (PMG) using simulation software FLUX 2D based on finite-element method (FEM) to achieve higher operating efficiency.
This thesis studies the following items of a three-phase PMG: (a) improvement of size and magnetization characteristic of iron core and permanent magnet, (b) the influence of different resistive loads and rectifier circuits, (c) the influence of voltage, current, output power, efficiency, and harmonics under different rotational speeds, (d) the influence under a special fault, (e) the influence of operating efficiency, etc.
In this thesis, the electromagnetic-field simulation software FLUX 2D is employed to build geometric structure of the studied PMG and adjust different machine parameters such as the thickness of PMG, length of stator tooth, stator material, permanent-magnet material, air-gap length between the stator and rotor, etc. to obtain the highest operation efficiency. In the future, these important parameters can be utilized to manufacture three-phase PMG with higher quality, lower core loss, and higher efficiency.

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