A novel parallel hybrid excitation compound motor(PHECM)is proposed based on the principle of magnetic field modulation and the design idea and technology of hybrid excitation synchronous motor. The basic structure and working principle of the motor is presented and the matching principle of the slots and poles is given. A 3-D finite element method(FEM)is used to obtain the armature winding flux linkage
the no load electromotive force(EMF)and the output torque of the motor when it runs without load under different excitation currents. It is verified that the superposition theorem is satisfied when the motor runs at parallel operation. An equivalent magnetic circuit of the motor at no load
a formula and the range of the flux regulation are obtained. A prototype of the motor is manufactured according to the theoretical analysis and the no load EMF of the motor at rated speed with different excitation currents is tested. Then
its flux regulation performance is analyzed. Both the simulation and experimental data show that the air gap flux is bidirectionally changed by adjusting the excitation current. Analysis results are validated by experiments.
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ATALLAH K, HOWE D. A novel high-performance magnetic gear [J]. IEEE Transactions on Magnetics, 2001, 37(4): 2844-2846.
ZHANG Dong, CHAU K T, JIANG Jianzhong, et al. Design and research of a novel magnetic-geared outer rotor compact machine [J]. Proceedings of the CSEE, 2008, 28(30): 67-72.
LIN Heyun, ZHANG Yang, YANG Hui, et al. Overview and recent developments of permanent magnet vernier machines [J]. Proceedings of the CSEE, 2016, 36(18): 5021-5034.
BAI Jingang, ZHENG Ping, TONG Chengde, et al. Characteristic analysis and verification of the magnetic-field-modulated brushless double-rotor machine [J]. IEEE Transactions on Industrial Electronics, 2015, 62(7): 4023-4032.
LI Xianglin, CHENG Ming, CHAU K T, et al. Principle and analysis of a new flux-concentrating field-modulated permanent-magnet wind power generator [J]. Transactions of China Electrotechnical Society, 2014, 29(11): 1-9.
LIU Guohai, YANG Xin, XU Liang, et al. Research on flux-weakening performances for five-phase fault-tolerant permanent-magnet vernier motors [J]. Transactions of China Electrotechnical Society, 2017, 32(19): 52-61.
ZHU Xiaoyong, CHENG Ming, ZHAO Wenxiang. An overview of hybrid excited electric machine capable of field control [J]. Transactions of China Electro-technical Society, 2008, 23(1): 30-39.
ZHANG Zhuoran, GENG Weiwei, DAI Ji, et al. Recent progress of novel hybrid excitation machines [J]. Journal of Nanjing University of Aeronautics and Astronautics, 2014, 46(1): 27-36.
GENG Weiwei, ZHANG Zhuoran, YU Li, et al. Operation principle and flux regulation characteristics of a new parallel hybrid excitation blushless DC machine [J]. Transactions of China Electrotechnical Society, 2013, 28(11): 132-138.
LIN Nan, WANG Dong, WEI Kun, et al. Structure and voltage regulation performance of high speed hybrid excitation synchronous generators [J]. Transactions of China Electrotechnical Society, 2016, 31(7): 19-25.
LIN Nan, WANG Dong, WEI Kun, et al. Mathematical model and equivalent analysis of a novel hybrid excitation synchronous machine [J]. Transactions of China Electrotechnical Society, 2017, 32(3): 149-156.
ZHAO Xing, NIU Shuangxia. Design and optimization of a new magnetic-geared pole-changing hybrid excitation machine [J]. IEEE Transactions on Industrial Electronics, 2017, 64(12): 9943-9952.