TY - GEN
T1 - Proposed and Verification of Torque Equation of IPM-type Magnetic-Geared
AU - Ito, Koki
AU - Nakamura, Kenji
N1 - Publisher Copyright:
© 2020 The Institute of Electrical Engineers of Japan.
PY - 2020/11/24
Y1 - 2020/11/24
N2 - A magnetic-geared motor (MGM) consists of a magnetic gear and a permanent magnet (PM) motor, which are shared one inner rotor. Hence, it has high torque density in comparison with conventional PM motors. A structure of interior permanent magnet (IPM) is superior as an inner rotor in terms of efficiency. However, in the IPM-type MGM, magnetic interaction occurs and the torque equation considering the interaction has not been studied. This paper deals with the torque equation of the IPM-type MGM. First, the torque equation considering the magnetic interaction is derived. Next, the parameters of the torque equation are determined by using a two-dimensional finite element method (2D-FEM). Finally, the validity of the torque equation is proved by comparing with 2D-FEM.
AB - A magnetic-geared motor (MGM) consists of a magnetic gear and a permanent magnet (PM) motor, which are shared one inner rotor. Hence, it has high torque density in comparison with conventional PM motors. A structure of interior permanent magnet (IPM) is superior as an inner rotor in terms of efficiency. However, in the IPM-type MGM, magnetic interaction occurs and the torque equation considering the interaction has not been studied. This paper deals with the torque equation of the IPM-type MGM. First, the torque equation considering the magnetic interaction is derived. Next, the parameters of the torque equation are determined by using a two-dimensional finite element method (2D-FEM). Finally, the validity of the torque equation is proved by comparing with 2D-FEM.
KW - Magnetic gear
KW - Magnetic interaction
KW - Magnetic-geared motor
KW - Torque equation
UR - http://www.scopus.com/inward/record.url?scp=85099280063&partnerID=8YFLogxK
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U2 - 10.23919/ICEMS50442.2020.9291018
DO - 10.23919/ICEMS50442.2020.9291018
M3 - Conference contribution
AN - SCOPUS:85099280063
T3 - 23rd International Conference on Electrical Machines and Systems, ICEMS 2020
SP - 898
EP - 901
BT - 23rd International Conference on Electrical Machines and Systems, ICEMS 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 23rd International Conference on Electrical Machines and Systems, ICEMS 2020
Y2 - 24 November 2020 through 27 November 2020
ER -