傳統式的風扇皆以馬達與扇葉組合而成，在設計上馬達與扇葉為分開設計，因此效率、功率密度無法有效的提升且風扇較難實現微小化。本研究以永磁磁通切換式馬達(Flux-switching Permanent Magnet Motor, FSPM)為基礎，因永磁磁通切換式馬達磁鐵與繞線皆位於馬達定子，轉子以單一種軟磁材料組成，因此轉子結構強健，適合將轉子結合軸流式風扇扇葉翼型，並達成一體式設計。本文從傳統式的永磁磁通切換式馬達設計出發，最後結合扇葉與馬達達成一體式設計，並利用有限元素分析軟體進行電磁場與流場的模擬與驗證。最後利用軟磁複合材料(Soft Magnetic Composites, SMC)，以選擇性雷射熔融3-D列印實現與驗證本研究所設計之一體式馬達。

Traditional fans are usually consisted of impeller and electric motor, and the design of impeller and electric motor is separate. Therefore, the efficiency and power density can’t be enhanced effectively and hard to miniaturize. The integrated motor in this paper is based on the Flux-switching Permanent Magnet Motor (FSPM) and combine the airfoil-shaped rotor. The winding and permanent magnet of FSPM is on stator and the rotor of FSPM is composed by single soft magnetic material. The simple rotor shape and robust rotor are suitable for combining the fan’s impeller. This paper first introduce the design method of the FSPM, and combine the impeller design and FSPM design to achieve the integrated motor. Then using the FEA software to simulate the electromagnetic field and flow field of the integrated motor. Finally, implementing the integrated motor via soft magnetic Composites which formed by the selective laser melting 3D printing and verify the performance and efficiency by the dynamometer.

[1] The News Lens關鍵評，2017，
[Available]:https://www.thenewslens.com/article/67672
[2] 全國電力資源供需報告，2018，
[Available]: https://www.moeaboe.gov.tw/ECW/populace /content/Conten
tDesc.aspx?menu_id=6985
[3] 核能、火力、水力發電量數據，2017，
[Available]: http://n.sfs.tw/content/index/10313?noframe=true
[4] E. Hoang, H. B. Ahmed, J. Lucidarme, "Switching flux permanentmagnet polyphased synchronous machines,"1997 European Conference on Power Electronics and Applications (EPE'97), Trondheim, Norway, 1997.
[5] 迴轉式壓縮機示意圖，
[Available]: https://www.indiamart.com/proddetail/twin-rotary-compressor-88010439412.html
[6] H. Ding, Y. Li, Mingda Liu and B. Sarlioglu, "Novel design of multistage integrated motor-compressor," 2017 IEEE Transportation Electrification Conference and Expo (ITEC), Chicago, 2017.
[7] H. Ding, M. Liu and B. Sarlioglu, "Design and optimization of E-Core integrated flux-switching motor-compressor," 2018 20th European Conference on Power Electronics and Applications (EPE'18), Riga, 2018.
[8] H. Ding, Y. Li, S. G. Min and B. Sarlioglu, "Electromagnetic and thermodynamic design of a novel integrated flux-switching motor-compressor with airfoil-shaped rotor," 2017 IEEE Energy Conversion Congress and Exposition (ECCE), Cincinnati, 2017.
[9] H. Ding, Y. Li, D. Han, M. Liu and B. Sarlioglu, "Design of a novel integrated motor-compressor machine with GaN-based inverters," 2017 19th European Conference on Power Electronics and Applications (EPE'17), Warsaw, 2017.
[10] H. Ding, W. Sixel, M. Liu, Y. Li and B. Sarlioglu, "Influence of rotor pole thickness on optimal combination of stator slot and rotor pole numbers in integrated flux-switching motor-compressor," 2018 IEEE Energy Conversion Congress and Exposition (ECCE), Portland, 2018.
[11] H. Ding, Y. Li, S. G. Min and B. Sarlioglu, "Performance analysis of a high-speed integrated flux-switching motor-compressor," 2017 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific), Harbin, 2017.
[12] Y. Li, D. Bobba, E. Schubert, H. Ding, C. Morris and B. Sarlioglu, "A novel flux-switching permanent magnet motor-compressor with integrated airfoil-shaped rotor design," 2016 IEEE Energy Conversion Congress and Exposition (ECCE), Milwaukee, 2016.
[13] 洪國泰，小型軸流風扇之設計、模擬與實驗整合研究，國立台灣科技大學機械工程系碩士論文，2007。
[14] C. Pollock, H. Pollock, R. Barron, R. Sutton, J. Coles, D. Moule and A. Court, "Flux switching motors for automotive applications," 38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, Salt Lake City, USA, 2003.
[15] J. T. Chen, and Z. Q. Zhu, " Winding configurations and optimal stator and rotor pole combination of flux-switching PM brushless AC machines," in IEEE Transactions on Energy Conversion, vol. 25, no. 2, pp. 293-302, June 2010.
[16] N. Bianchi, S. Bolognani,M. D. Pr´e, and G. Grezzani, "Design considerations for fractional-slot winding configurations of synchronous machines," in IEEE Transactions on Industry Applications, vol. 42, no. 4, pp. 997-1006, July-Aug 2006.
[17] S. Yang, J. Zhang and J. Jiang, "Modeling Torque Characteristics and Maximum Torque Control of a Three-Phase, DC-Excited Flux-Switching Machine," in IEEE Transactions on Magnetics, vol. 52, no. 7, pp. 1-4, July 2016.
[18] 茆尚勳，直驅式跑步機用直流無刷馬達之設計，國立成功大學機械工程學系碩士論文，2002。
[19] Y. Shi, L. Jian, J. Wei, Z. Shao, W. Li and C. C. Chan, "A New Perspective on the Operating Principle of Flux-Switching Permanent-Magnet Machines," in IEEE Transactions on Industrial Electronics, vol. 63, no. 3, pp. 1425-1437, March 2016.
[20] W. Hua and C. Ming, "Inductance characteristics of 3-phase flux-switching permanent magnet machine with doubly-salient structure," 2006 CES/IEEE 5th International Power Electronics and Motion Control Conference, Shanghai, 2006.
[21] 陳洪龍，應用於電動車之永磁磁通切換馬達之設計與分析，逢甲大學電機工程學系碩士論文，2014。
[22] Hanselman D.C., 1994, Brushless Permanent-Magnet Motor Design, McGraw-Hill, New York.
[23] K.-J. Jhong, T.-W. Chang, W.-H. Lee, M.-C. Tsai, I.-H. Jiang, "Characteristic of high frequency Fe-Si-Cr material for motor application by selective laser melting," AIP Advances, vol. 9, pp. 035317, March 2019.