本文研究新型態增磁式內藏型永磁同步馬達(Flux Intensifying Permanent Magnet Synchronous Motor, FI-PMSM)應用於電動機車之設計，透過比較弱磁型內藏型永磁同步馬達(Flux Weakening Interior Permanent Magnet Synchronous Motor, FW-IPM)與增磁式電機特性差異，歸納出增磁電機具有優異的抗退磁能力與較寬廣之定功率區間的特性，滿足電動機車高速長時間行駛之需求。
本文分為兩部分，第一部分為透過磁路分析轉子幾何改變對於電機磁路與電感差異之影響，進而推導設計增磁電機的關鍵幾何參數；第二部分則藉由設計增磁結構，達成馬達增磁特性，並以有限元素分析軟體(Finite Element Analysis,FEA)模擬驗證電機性能。最後，本文提出增磁式內藏型永磁同步馬達設計流程，並透過模擬與量測，驗證增磁對於寬廣之定功率區間的重要性。

This thesis focuses on the application of a new type of Flux Intensifying Permanent Magnet Synchronous Motor (FI-PMSM) for the design of electric scooters. By comparing the difference between Flux Weakening Interior Permanent Magnet Synchronous Motor (FW-IPM) and FI-PMSM, it is concluded that the FI-PMSM has the characteristics of excellent anti-demagnetization capability and a wide constant power speed range. These features meet the essential need of electric scooters such as high speed and long-time driving.

In this thesis, analytical the influence of the rotor geometry change on the difference between the magnetic circuit and the inductance of the motor through the magnetic circuit, and then deduces the key geometric parameters of the design of the flux intensifying motor. Then, by designing the flux intensifying structure, the magnetization characteristics of the motor are achieved, and the performance of the motor is verified via Finite Element Analysis (FEA).
Finally, this thesis presents the design process of the flux intensifying permanent magnet synchronous motor, and through simulation and measurement, the importance of flux intensifying for a wide constant power speed range is verified.

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