TY - GEN
T1 - Influence of Rotor Pole Number on Performance of Novel Slot Permanent Magnet Machines with Complementary Rotors
AU - Wang, Qingsong
AU - Igic, Petar
AU - Niu, Shuangxia
AU - Wang, Junnian
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/9
Y1 - 2020/9
N2 - In this paper, the influence of rotor pole number on the performance of a new kind of slot permanent magnet (PM) machine with complementary rotors is investigated. The major merit of this novel machine concept is the use of complementary rotors, which consist of an inner rotor and an outer rotor that are mechanically staggered by 180 electrical degrees, to provide complementary paths for the PM excitation flux. Two layers of PMs are employed, located on the inside and outside of the slots. Meanwhile, with only salient poles, the rotors are mechanically robust. The investigation is based on 12 stator pole machines with 10, 11, 13 and 14 rotor poles. Electromagnetic performance measures including flux linkage, back electromotive force (EMF), torque characteristics, loss and efficiency are comprehensively studied using the finite element method (FEM). The results show that the machine with 11 rotor poles can achieve the largest torque density and rated efficiency, as well as minimum ratio of cogging torque to rated torque.
AB - In this paper, the influence of rotor pole number on the performance of a new kind of slot permanent magnet (PM) machine with complementary rotors is investigated. The major merit of this novel machine concept is the use of complementary rotors, which consist of an inner rotor and an outer rotor that are mechanically staggered by 180 electrical degrees, to provide complementary paths for the PM excitation flux. Two layers of PMs are employed, located on the inside and outside of the slots. Meanwhile, with only salient poles, the rotors are mechanically robust. The investigation is based on 12 stator pole machines with 10, 11, 13 and 14 rotor poles. Electromagnetic performance measures including flux linkage, back electromotive force (EMF), torque characteristics, loss and efficiency are comprehensively studied using the finite element method (FEM). The results show that the machine with 11 rotor poles can achieve the largest torque density and rated efficiency, as well as minimum ratio of cogging torque to rated torque.
KW - Complementary rotors
KW - finite element method
KW - rotor pole number
KW - slot permanent magnet
UR - http://www.scopus.com/inward/record.url?scp=85094874457&partnerID=8YFLogxK
U2 - 10.1109/IESES45645.2020.9210680
DO - 10.1109/IESES45645.2020.9210680
M3 - Conference article published in proceeding or book
AN - SCOPUS:85094874457
T3 - Proceedings - 2020 2nd IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2020
SP - 287
EP - 291
BT - Proceedings - 2020 2nd IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2nd IEEE International Conference on Industrial Electronics for Sustainable Energy Systems, IESES 2020
Y2 - 1 September 2020 through 3 September 2020
ER -