一體式啟動馬達發電機(Integrated Starter Generator, ISG)為一整合啟動馬達及發電機功能的一體式電機，為混合動力汽車(Hybrid Electric Vehicle, HEV)的重要元件，其具備啟動引擎、發電、助動等多項功能。本研究提出一徑向電機與軸向電機整合為一體的軸徑向式磁通之永磁雙氣隙ISG，其磁鐵為對沖式磁極(Spoke-type)，藉由產生多向磁通，以提升啟動能力及發電量。同時轉子結構之設計為分段式轉子，以增加設計自由度，並採歪斜(Skew)設計，針對頓轉扭矩(Cogging Torque)與發電量作最佳化設計。此外，本研究亦利用雙定子的特殊性結構，變化匝數設計達到合理的功率分配，使性能分別符合啟動馬達與發電機的操作區間。同時亦建立軸徑向對沖磁極ISG的設計流程，對啟動能力、發電量與發電電壓、頓轉扭矩進行3D有限元素分析(Finite Element Analysis, FEA)，最後結合雷射積層製造技術(3D列印)實作一樣機，以驗證設計與模擬結果。

Integrated starter generator (ISG) is a machine that combines a starter and a generator, which is one of the key parts of hybrid electric vehicle (HEV) and is adoptable to start engine, power generation and assistance. This paper proposed a dual air-gap permanent magnet (PM) machine with axial-radial flux. In order to enhance the starting ability and power generation, the spoke-type pole arrangements is adopted to produce multiple direction flux. Also, the rotor is divided into three parts, and the lower radial part and the axial part are skewed which can effectively reduce the cogging torque and then further optimize the power generation. Moreover, with the winding design, the proposed design is expected to be applicable to different operation modes between the starter and generator. Further, the 3D finite element analysis (FEA) is employed to simulate the starting ability, power generation, voltage, and cogging torque. The prototype is constructed by additive manufacturing (namely 3D printing), and finally the performances of the proposed design is verified.

[1] Z. Hui, L. Li, Z. Ping, L. Ranran, and Z. Jing, "Research on the axial-radial flux compound-structure permanent-magnet synchronous machine (CSPMSM) used for HEV," 2008 International Conference on Electrical Machines and Systems, pp. 3250-3253, 2008.
[2] (2017). 2017-2020年全球和中國混合動力汽車行業http://www.pday.com.cn/Htmls/Report/201704/24516153.html
[3] Hybrid系統與EV系統的種類
https://mook.u-car.com.tw/article158.html
[4] I.-A. Viorel, L. Szabo, L. Löwenstein, and C. Şteţ, Integrated Starter-Generators for Automotive Applications. 2004.
[5] New Approach to ISG from Mitsubishi Electric. https://www.adandp.media/blog/post/new-approach-to-isg-from-mitsubishi-electric
[6] Toyota Prius. https://zh.wikipedia.org/wiki/%E8%B1%90%E7%94%B0%E6%99%AE%E9%8A%B3%E6%96%AF
[7] 混合動力車輛https://zh.wikipedia.org/wiki/%E6%B7%B7%E5%90%88%E5%8B%95%E5%8A%9B%E8%BB%8A%E8%BC%9B
[8] R. Sabarirajan, N. J. Singh, and N. Senthilnathan, "Finite element analysis of an integrated starter generator (ISG) for four-wheelers using an induction machine," in 2017 International Conference on Innovations in Information, Embedded and Communication Systems (ICIIECS), pp. 1-5, 2017.
[9] 汽車水溫表
https://kknews.cc/zh-tw/car/mbjxnp.html
[10] 稀土资源储量分布和稀土矿物产量情况 http://baike.asianmetal.cn/metal/re/resources&production.shtml
[11] P. W. Huang, M. C. Tsai, and C. U. Ubadigha, "Investigation of high power density permanent magnet integrated starter/generator based on dual air-gap design," 2017 20th International Conference on Electrical Machines and Systems (ICEMS), pp. 1-4, 2017.
[12] L. Alberti et al., "Interior permanent magnet integrated starter‐alternator," COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 30, no. 1, pp. 117-136, 2011.
[13] H. D.C., Brushless Perman-Magnet Motor Design. 1994.
[14] 茆尚勳, "直驅式跑步機用直流無刷馬達之設計," 國立成功大學碩士論文, 2002.
[15] J. Gieras, R.-J. Wang, and M. J. Kamper, Axial Flux Permanent Magnet Brushless Machines. 2008.
[16] P. Zheng, J. Zhao, R. Liu, C. Tong, Q. Wu, and W. Shi, "Comparison and evaluation of different compound-structure permanent-magnet synchronous machine used for HEVs," 2010 IEEE Energy Conversion Congress and Exposition, pp. 1707-1714, 2010.
[17] Y. Liu, D. Cheng, J. Bai, C. Tong, Z. Song, and W. Tong, "Topology Comparison of Compound-Structure Permanent-Magnet Synchronous Machines," IEEE Transactions on Industry Applications, vol. 48, no. 6, pp. 2217-2222, 2012.
[18] L. Ranran, Z. Hui, T. Chengde, C. Gang, Z. Ping, and G. Gang, "Experimental Evaluation of a Radial-Radial-Flux Compound-Structure Permanent-Magnet Synchronous Machine Used for HEVs," IEEE Transactions on Magnetics, vol. 45, no. 1, pp. 645-649, 2009.
[19] X. Yin, M. Zhu, Y. Gao, Y. Fang, and P. D. Pfister, "A novel axial-radial flux-modulated permanent-magnet machine," 2016 19th International Conference on Electrical Machines and Systems (ICEMS), pp. 1-6, 2016.
[20] J. Zhao et al., "Experimental Study of Compound-Structure Permanent-Magnet Synchronous Machine Used for HEVs," IEEE Transactions on Magnetics, vol. 49, no. 2, pp. 807-810, 2013.
[21] H. Qiu, W. Yu, B. Tang, Y. Mu, W. Li, and C. Yang, "Study on the Influence of Different Rotor Structures on the Axial-Radial Flux Type Synchronous Machine," IEEE Transactions on Industrial Electronics, vol. 65, no. 7, pp. 5406-5413, 2018.
[22] Y. Liu, C. Tong, J. Bai, S. Yu, W. Tong, and W. Fu, "Optimization of an 80 kW Radial-Radial Flux Compound-Structure Permanent-Magnet Synchronous Machine Used for HEVs," IEEE Transactions on Magnetics, vol. 47, no. 10, pp. 2399-2402, 2011.
[23] P. Zheng, R. Liu, Q. Wu, J. Zhao, and Z. Yao, "Magnetic Coupling Analysis of Four-Quadrant Transducer Used for Hybrid Electric Vehicles," IEEE Transactions on Magnetics, vol. 43, no. 6, pp. 2597-2599, 2007.
[24] P. Zheng, J. Zhao, R. Liu, C. Tong, and Q. Wu, "Magnetic Characteristics Investigation of an Axial-Axial Flux Compound-Structure PMSM Used for HEVs," IEEE Transactions on Magnetics, vol. 46, no. 6, pp. 2191-2194, 2010.
[25] 黃柏維, "具自鎖功能之輔助載具用磁性致動器設計," 2014.
[26] 中鋼矽鋼片規格http://www.csc.com.tw/csc/pd/doc/spec_es_c_2016.pdf
[27] KYMCO全地形車
http://www.kymco.com.tw/atv/#MAXXER
[28] G. H. Zhang, C. Q. Ma, H. Y. Sun, L. F. Zhang, L. Liu, and K. Wang, "Optimization design of interior PM starter-generator," in 2017 20th International Conference on Electrical Machines and Systems (ICEMS), 2017, pp. 1-5.
[29] 內湖磁材釹鐵棚磁鐵型錄http://www.nhmagnet.com.tw/SiteShare6/AP/img.php?img=http://www.nhmagnet.com.tw/chinese/sintered_ndfeb_magnet-01-l.jpg&01=PA&02=01
[30] 美國線規_維基百科https://zh.wikipedia.org/wiki/%E7%BE%8E%E5%9B%BD%E7%BA%BF%E8%A7%84