Proposed and Verification of Torque Equation of IPM-type Magnetic-Geared
Proposed and Verification of Torque Equation of IPM-type Magnetic-Geared
复制标题
IPM型磁力齿轮传动扭矩方程的提出及验证
DOI：
10.23919/icems50442.2020.9291018
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
K. Nakamura
中科院分区：
文献类型：
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作者：
Koki Ito;K. Nakamura
磁齿轮减速电机是由永磁电机和磁齿轮共用一个内转子组成。因此，与传统的永磁电机相比，它具有高转矩密度。就效率而言，内置永磁体（IPM）的结构作为内转子是上级的。然而，在IPM型MGM中，磁相互作用发生并且考虑相互作用的转矩方程尚未被研究。本文研究了IPM型磁悬浮转子的转矩方程。首先，推导了考虑磁相互作用的转矩方程。接下来，通过使用二维有限元法（2D-FEM）来确定扭矩方程的参数。最后，通过与二维有限元法的比较，验证了该转矩方程的正确性。
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.