為了獲得較大的定功率操作區間(Constant Power Speed Range,
CPSR)，本文提出一最佳化方法，用於設計分數槽集中繞內藏型永磁
同步馬達(Concentrated Winding Interior Permanent Magnet Synchronous
Motor, FSCW-IPMSM)，以達成高 CPSR、低轉矩漣波與高效率，並應
用於電動機車上。
本文先針對其槽極配分析，目的在於降低高轉速下產生之轉矩漣波。
藉由探討特徵電流(Characteristic current)、磁交鏈與 d, q 軸電感之關
係，並針對三種不同磁鐵強度之磁鐵，進一步分析在弱磁控制下產生
之影響。藉由模擬比對發現特徵電流在 d-q 平面之位置，對於延長
CPSR 有關鍵之影響。
本文利用反應曲面法(Response Surface Methodology, RSM)預估轉
子幾何參數，並藉由有限元素分析之中央合成設計(Central Composite
Design, CCD)與內差法計算磁鐵磁交鏈、電感，比較轉子幾何變化對
於磁交鏈與 d, q 軸電感之關係。最後利用反應曲面法，得到近似之轉
子幾何參數，並結合 Cuckoo Search Algorithm (CSA)，針對所需之目
標，利用重複模擬搜尋比對，得到最佳之設計。最後針對最佳化馬達
進行模擬驗證，結果其性能優於未最佳化之設計。目前文獻中並未發
現應用 CSA 於內藏型永磁同步馬達之最佳化。

This thesis presents a new method to design and optimize a Fractional Slot Concentrated Winding Interior Permanent Magnet Synchronous Motor (FSCWIPMSM) for wide Constant Power Speed Range (CPSR). The designed electric traction motor for a particular EV application (Scooter), was optimized and built with the purpose of achieving wide CPSR, low torque ripple and high efficiency.
A brief study of the influence of slot-pole combination on Fractional Slot Concentrated Winding (FSCW) motors were conducted in order to reduce the torque ripple of the motor at high speed operation. The effect of the characteristic current, the magnet flux linkage and d-q axis inductances were also evaluated. Then three designs with different magnets remanence were compared to analyze the flux linkages and inductances.
In order to optimize the CPSR without worsening the performance of the motor, the Response Surface Methodology (RSM) was first applied to build the second order polynomial models for the estimation of motor parameters. Simulations were done using
Central Composite Design (CCD) and conducted using finite element analysis to calculate the flux linkages and inductances at the interpolation points. The combination of the second order response surface models which are used for approximation of motor parameters, and Cuckoo Search Algorithm (CSA) which is used as a searching mechanism, is presented and proved to be very useful for design optimization problems.
The simulation results proved that the Fractional Slot Concentrated Winding Interior Permanent Magnet Synchronous Motor (FSCW-IPMSM) is suitable for traction application and has also demonstrated the effectiveness of the proposed optimization process.
It is worth mentioning that the proposed design and optimization method is unique, as no available literature has claimed the use of Cuckoo Search Algorithm on IPM motor optimization problems.

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