TY - GEN
T1 - Improved torque and flux weakening capability for flux modulated machines by injecting DC currents into the armature windings
AU - Jia, Shaofeng
AU - Qu, Ronghai
AU - Li, Dawei
AU - Li, Jian
AU - Kong, Wubin
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2017/1/12
Y1 - 2017/1/12
N2 - Flux modulated machines (FMMs) are well known for their features of high torque density. In this paper, the DC currents are innovatively injected into the armature coils which are arranged in a specific way in FMMs, and the electromagnetic performance are analyzed by the finite element analysis (FEA). The results show that the electromagnetic torque contains not only the pre-existing PM torque, but also the additional torque produced by the DC current interacted with the AC armature current. What is more, it is found that the torque is improved under the constant copper loss compared with when fed with regular pure sinusoidal current. Besides, the flux weakening capability is greatly enhanced since the exciting field can be easily adjusted by the injected DC current, therefore, it can be inferred that the constant power speed range is extended.
AB - Flux modulated machines (FMMs) are well known for their features of high torque density. In this paper, the DC currents are innovatively injected into the armature coils which are arranged in a specific way in FMMs, and the electromagnetic performance are analyzed by the finite element analysis (FEA). The results show that the electromagnetic torque contains not only the pre-existing PM torque, but also the additional torque produced by the DC current interacted with the AC armature current. What is more, it is found that the torque is improved under the constant copper loss compared with when fed with regular pure sinusoidal current. Besides, the flux weakening capability is greatly enhanced since the exciting field can be easily adjusted by the injected DC current, therefore, it can be inferred that the constant power speed range is extended.
KW - Concentrated coil winding
KW - DC current injected
KW - Dual stator
KW - Flux modulated machines
KW - Vernier machines
UR - https://www.scopus.com/pages/publications/85012034023
U2 - 10.1109/CEFC.2016.7815986
DO - 10.1109/CEFC.2016.7815986
M3 - 会议稿件
AN - SCOPUS:85012034023
T3 - IEEE CEFC 2016 - 17th Biennial Conference on Electromagnetic Field Computation
BT - IEEE CEFC 2016 - 17th Biennial Conference on Electromagnetic Field Computation
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 17th Biennial IEEE Conference on Electromagnetic Field Computation, IEEE CEFC 2016
Y2 - 13 November 2016 through 16 November 2016
ER -