scholarly journals Performance optimisation of a segmented outer rotor flux switching permanent magnet motor for direct drive washing machine application

2021 ◽  
Author(s):  
Sadegh Mollaei Saghin ◽  
Aghil Ghaheri ◽  
Hossein Shirzad ◽  
Ebrahim Afjei
Keyword(s):  
Permanent Magnet ◽  
Direct Drive ◽  
Washing Machine ◽  
Permanent Magnet Motor ◽  
Outer Rotor ◽  
Rotor Flux

scholarly journals A Novel Modular-Stator Outer-Rotor Flux-Switching Permanent-Magnet Motor

Energies ◽  
2017 ◽  
Vol 10 (7) ◽  
pp. 937 ◽  
Author(s):  
Jing Zhao ◽  
Yun Zheng ◽  
Congcong Zhu ◽  
Xiangdong Liu ◽  
Bin Li
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnet Motor ◽  
Outer Rotor ◽  
Rotor Flux

scholarly journals Electromagnetic Performances Evaluation of an Outer-Rotor Flux-Switching Permanent Magnet Motor Based on Electrical-Thermal Two-Way Coupling Method

2017 ◽  
Author(s):  
Zhengming Shu ◽  
Xiaoyong Zhu ◽  
Li Quan ◽  
Yi Du ◽  
Chang Liu
Keyword(s):  
Permanent Magnet ◽  
High Efficiency ◽  
Design Method ◽  
Coupling Method ◽  
Heat Sources ◽  
Permanent Magnet Motor ◽  
Output Torque ◽  
Outer Rotor ◽  
Different Temperatures ◽  
Rotor Flux

Flux-switching permanent magnet (FSPM) motors have gained increasing attention in the electric vehicles (EVs) applications due to the advantages of high power density, high efficiency. However, the heat sources of both permanent magnet (PM) and armature winding are located on the limited stator space in the FSPM motors, which may result in the PM overheated and irreversible demagnetization caused by temperature rise and it is often ignored in the conventional thermal analysis. In this paper, a new electrical-thermal two-way coupling design method is proposed to analyze the electromagnetic performances, where the change of PM material characteristics under different temperatures is taken into consideration. Firstly, the motor topology and design equations are introduced. Secondly, the demagnetization curves of PM materials under different temperatures are modeled due to PM materials are sensitive to the temperature. And based on the electrical-thermal two-way coupling method, the motor performances are evaluated in details, such as the load PM flux linkage and output torque. Then, the motor is optimized, and the electromagnetic performances between initial and improved motors are compared. Finally, a prototype motor is manufactured, and the results are validated by experimental measurements.

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