TY - GEN
T1 - A Novel Stator Dual-PM Flux-Switching Machine with Improved Utilization of High-Order Harmonics and Reduced Flux Leakage
AU - Huang, Jiahui
AU - Fu, Weinong
AU - Niu, Shuangxia
AU - Bi, Yanding
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023/12/14
Y1 - 2023/12/14
N2 - This paper proposes a novel stator dual-permanent magnet flux-switching (SDPM-FS) machine with enhanced torque density compared to the conventional flux-switching permanent-magnet (FSPM) machines. The SDPM-FS machine features a unique arrangement of PMs located on the stator tooth region. A set of radially magnetized PMs is added into the dummy slots, and the side teeth on the stator are removed to enhance the 4th-order harmonic of the stator PM excited magnetomotive (MMF). The utilization of 2 pole-pair working harmonic of air-gap flux density is significantly improved while the flux leakage of spoke-type PMs is simultaneously reduced. Consequently, the phase flux linkage increases, and the no-load phase back EMF is further enlarged. In this paper, the working principle of the proposed SDPM-FS machine is analytically introduced by using a simplified magnetomotive force (MMF)-permeance model. Subsequently, a non-dominated sorting genetic algorithm II (NSGA-II) is used to conduct the global optimization. Furthermore, the performance of the proposed SDPM-FS machine is comprehensively compared with a conventional multi-tooth FSPM machine using finite element analysis (FEA). The results demonstrate that the SDPM-FSM exhibits notable enhancements in torque density and efficiency.
AB - This paper proposes a novel stator dual-permanent magnet flux-switching (SDPM-FS) machine with enhanced torque density compared to the conventional flux-switching permanent-magnet (FSPM) machines. The SDPM-FS machine features a unique arrangement of PMs located on the stator tooth region. A set of radially magnetized PMs is added into the dummy slots, and the side teeth on the stator are removed to enhance the 4th-order harmonic of the stator PM excited magnetomotive (MMF). The utilization of 2 pole-pair working harmonic of air-gap flux density is significantly improved while the flux leakage of spoke-type PMs is simultaneously reduced. Consequently, the phase flux linkage increases, and the no-load phase back EMF is further enlarged. In this paper, the working principle of the proposed SDPM-FS machine is analytically introduced by using a simplified magnetomotive force (MMF)-permeance model. Subsequently, a non-dominated sorting genetic algorithm II (NSGA-II) is used to conduct the global optimization. Furthermore, the performance of the proposed SDPM-FS machine is comprehensively compared with a conventional multi-tooth FSPM machine using finite element analysis (FEA). The results demonstrate that the SDPM-FSM exhibits notable enhancements in torque density and efficiency.
KW - Finite element analysis (FEA)
KW - flux modulation effect
KW - harmonic analysis
KW - stator PM
KW - torque density
UR - https://www.scopus.com/pages/publications/85182323664
U2 - 10.1109/ICEMS59686.2023.10345080
DO - 10.1109/ICEMS59686.2023.10345080
M3 - Conference article published in proceeding or book
AN - SCOPUS:85182323664
T3 - 2023 26th International Conference on Electrical Machines and Systems, ICEMS 2023
SP - 5114
EP - 5118
BT - 2023 26th International Conference on Electrical Machines and Systems, ICEMS 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 26th International Conference on Electrical Machines and Systems, ICEMS 2023
Y2 - 5 November 2023 through 8 November 2023
ER -