近年來，具備垂直起降（Vertical Take-Off and Landing, VTOL）能力之飛行載具已成為航空領域發展的重要趨勢，此項技術可有效突破傳統對跑道的依賴，提升起降之靈活性與場域適應性，無論於軍事用途或民生商業應用皆展現出顯著優勢。隨著旋轉電機技術之持續進步，純電力驅動之垂直起降飛行載具（electric VTOL, eVTOL）已逐步從概念走向實現。相較於傳統內燃機推進系統之無人機或具VTOL能力之飛行器，eVTOL具備更高之安全性、更低之運轉噪音以及更優異之續航性能，顯著拓展其應用潛能。本文針對馬達設計，提出以高扭矩密度、高效率、優異容錯能力及最小化磁鐵用量為主要目標。設計採用五相永磁同步游標馬達架構，並結合容錯齒設計，以提升單相開路故障情況下的穩定運作能力，增強電動飛行器於飛行過程中的安全性與可靠性。為提升扭矩密度，馬達定子採用裂齒式結構，以提高游標馬達之齒輪比。另透過連續磁極設計，有效減少磁鐵用量，並配合繞線配置，改善因磁通分佈不均所產生之反電動勢偶次諧波，以優化整體效率表現。在材料選擇方面，則綜合考量扭矩密度、效率與製程可行性，致力於在性能與製造成本之間取得最佳平衡。

Recent advancements in Vertical Take-Off and Landing (VTOL) technology have significantly expanded the flexibility of aerial vehicles, eliminating the reliance on runways and enabling broader applications in both military and commercial sectors. Electrically powered VTOL aircraft (eVTOLs), driven by progress in rotating electric machine technology, are increasingly replacing conventional combustion-based systems due to their enhanced safety, lower noise, and improved endurance.This thesis proposes a five-phase permanent magnet synchronous Vernier motor optimized for eVTOL applications. The design targets high torque density, high efficiency, fault tolerance, and reduced permanent magnet usage. A segmented-tooth stator structure is adopted to enhance the Vernier gear ratio and torque density, while a continuous-pole rotor reduces magnet consumption. To improve efficiency, optimized winding configurations are employed to suppress even-order back electromotive force (EMF) harmonics arising from flux distribution asymmetry. A fault-tolerant tooth design further ensures stable operation under single-phase open-circuit conditions, enhancing flight safety and reliability. Additionally, material selection is carefully balanced to achieve an optimal trade-off between performance, manufacturability, and cost.The proposed motor architecture demonstrates the potential to meet the stringent demands of eVTOL systems, offering a promising solution for next-generation electric aircraft propulsion.

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