TY - GEN
T1 - An Integrated Axial-Flux Magnetic-Geared Double-Rotor Machine Using Harmonic Current Injection Method for HEVs
AU - Lang, Jiewen
AU - Tong, Chengde
AU - Bai, Jingang
AU - Liu, Jiaqi
AU - Liu, Guopeng
AU - Zheng, Ping
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Enjoying the merits of compact structure, less noise and high specific power, axial-flux magnetic-geared double-rotor machines (AMGDRMs) have been proved a promising candidate for the electrical-continuously variable transmission (e-CVT) in hybrid electric vehicles (HEVs). However, an additional permanent magnet synchronous machine (PMSM) is needed for torque compensation in the e-CVT system. In this paper, a novel integrated scheme which can realize the functional integration of a PMSM is proposed to improve compactness further. By carefully designing pole-pair number combination, the PMSM torque would be produced by the interaction between the armature fifth-harmonic and PM fundamental magnetic fields when injecting harmonic current. However, such combination would cause significant principled torque ripple. Hence, a suppression method based on the phase-shift structure is proposed to cancel the torque fluctuation out, thus the proposed machine can enable both the MGDRM and PMSM operations without significant torque ripple. Compared with existing dual-winding integrated schemes, an integrated winding configuration where only one set of conventional integral-slot winding is placed into one stator is adopted in the proposed machine, simplifying the manufacture process. First, the machine structure and operation principle are investigated. Second, the torque ripple suppression mechanism is analyzed. Finally, 3-D FEA simulations are carried out to validate the proposed machine and evaluate overall performances.
AB - Enjoying the merits of compact structure, less noise and high specific power, axial-flux magnetic-geared double-rotor machines (AMGDRMs) have been proved a promising candidate for the electrical-continuously variable transmission (e-CVT) in hybrid electric vehicles (HEVs). However, an additional permanent magnet synchronous machine (PMSM) is needed for torque compensation in the e-CVT system. In this paper, a novel integrated scheme which can realize the functional integration of a PMSM is proposed to improve compactness further. By carefully designing pole-pair number combination, the PMSM torque would be produced by the interaction between the armature fifth-harmonic and PM fundamental magnetic fields when injecting harmonic current. However, such combination would cause significant principled torque ripple. Hence, a suppression method based on the phase-shift structure is proposed to cancel the torque fluctuation out, thus the proposed machine can enable both the MGDRM and PMSM operations without significant torque ripple. Compared with existing dual-winding integrated schemes, an integrated winding configuration where only one set of conventional integral-slot winding is placed into one stator is adopted in the proposed machine, simplifying the manufacture process. First, the machine structure and operation principle are investigated. Second, the torque ripple suppression mechanism is analyzed. Finally, 3-D FEA simulations are carried out to validate the proposed machine and evaluate overall performances.
KW - Axial-flux
KW - harmonic current injection
KW - magnetic-geared double-rotor machine (MGDRM)
KW - torque ripple suppression
UR - https://www.scopus.com/pages/publications/85174513560
U2 - 10.1109/INTERMAG50591.2023.10265015
DO - 10.1109/INTERMAG50591.2023.10265015
M3 - 会议稿件
AN - SCOPUS:85174513560
T3 - Digests of the Intermag Conference
BT - 2023 IEEE International Magnetic Conference, INTERMAG 2023 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE International Magnetic Conference, INTERMAG 2023
Y2 - 15 May 2023 through 19 May 2023
ER -