Structure and Electromagnetic Characteristics Analysis of U-shaped Permanent Magnet Salient Pole Linear Motor

2019 ◽  
Author(s):  
Xiaozhuo Xu ◽  
Shengyang Ji ◽  
Baoyu Du ◽  
Xudong Wang ◽  
Chengzhe Wang ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Linear Motor ◽  
Salient Pole ◽  
Characteristics Analysis ◽  
Electromagnetic Characteristics

scholarly journals Design and Analysis of the 45kW-Class Magnetic Geared Permanent Magnet Synchronous Motor for Traction of Tram Vehicles

2021 ◽  
Vol 11 (14) ◽  
pp. 6360
Author(s):  
Jae-Hyeon Lim ◽  
Geochul Jeong ◽  
Hyung-Woo Lee ◽  
Jae-Bum Lee ◽  
Jong-Seok Lim ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Detailed Model ◽  
Outer Rotor ◽  
Rotor Poles ◽  
Characteristics Analysis ◽  
Rotor Pole ◽  
Electromagnetic Characteristics ◽  
And Performance

The magnetic geared permanent magnet synchronous motor (MG-PMSM) is a PMSM that has two rotors with different rotation speeds and includes the function of magnetic gear. The design studies of the 45kW-class MG-PMSM are conducted for the application of the driving system for a tram. In this research, first, to derive the detailed model of the 45kW-class MG-PMSM for the tram, the analysis of the characteristics according to the stator winding method was performed. After selecting the winding method that can reduce the size of the MG-PMSM, two design topologies were applied to determine the number of stator poles, the number of outer rotor pole pieces, and the number of inner rotor poles of the MG-PMSM. A 45kW-class MG-PMSM detailed model was derived by applying a design topology that can minimize the size of the MG-PMSM, and it was confirmed that the required performance is satisfied through electromagnetic characteristics analysis. In addition, the 4.5kW-class small-scaled MG-PMSM prototype with concentrated winding was manufactured to verify the validity of the analytical model, and performance verification was performed.

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