近年來由於節能議題的發酵與磁石成本之起伏，同步磁阻馬達(SynRM)因其無須磁石與高效率的特性而受到關注。同步磁阻馬達與感應馬達同樣以弦波激磁以產生旋轉磁場，因此兩者定子部分差異不大。影響同步磁阻馬達最主要因素在於轉子的設計，其轉子之凸極效應的特性中，直軸(Direct axis)與交軸(Quadrature axis)電感之比值(凸極比)與差值，為其影響性能之主要設計參數。
本論文以設計一高效率之同步磁阻馬達為研究目標。主要提出兩個部分的研究，第一部分研究尺寸對於同步磁阻馬達交、直軸電感比之影響，藉由四個不同尺寸感應馬達公模，加入同步磁阻馬達轉子，探討馬達尺寸與交、直軸電感比之關係。第二部分則探討同步磁阻馬達之設計，應用既有之感應馬達定子，藉由分析轉子結構，設計出高效率之同步磁阻馬達並建立其設計流程。最後進行實驗以驗證其模擬分析之正確性，其中以電磁有限元素軟體進行電磁場模擬分析輔助設計。

Recently, synchronous reluctance motors (SynRMs) have attracted interest because of need to conserve energy and reduce unstable magnet costs. The stator in a SynRM is fundamentally the same as that in an in-duction machine with three-phase windings that produce a sinusoidal ex-citation Magnetomotive force wave at the air gap. The most critical per-formance parameters of an SynRM depend on the synchronous inductance ratio or saliency ratio, Ld/Lq, and the difference between Ld and Lq. In this thesis, a high efficient SynRM producing a low torque ripple is presented.
The research was divided into two parts. First, the dimension effect of SynRMs was investigated. Using four dimensions of stators and designing the rotor by employing the determined design process, the relationship between dimension and saliency ratio was determined. Second, the SynRM design was investigated and a design process was established by analyzing the rotor structure of existing induction motor stators and conducting finite element analysis simulations. Experimental studies of the final design model were compared with the analytical results.

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