Analysis and experimental verification of dual star permanent magnet synchronous motor with rotor back iron made of soft magnetic composite

2019 ◽  
Vol 1 (7) ◽  
pp. 14-19
Author(s):  
Dawid DANIELCZYK
Keyword(s):  
Permanent Magnet ◽  
Experimental Verification ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Magnetic Composite ◽  
Soft Magnetic ◽  
Soft Magnetic Composite

scholarly journals Investigation of an Inset Micro Permanent Magnet Synchronous Motor Using Soft Magnetic Composite Material

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4445
Author(s):  
Da-Chen Pang ◽  
Zhen-Jia Shi ◽  
Pei-Xuan Xie ◽  
Hua-Chih Huang ◽  
Gia-Thinh Bui
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Torque Ripple ◽  
Synchronous Motor ◽  
Silicon Steel ◽  
Magnetic Composite ◽  
Soft Magnetic ◽  
Tile Type ◽  
Torque Density ◽  
Soft Magnetic Composite

This paper presents the world’s smallest inset permanent magnet synchronous motor (PMSM) with a soft magnetic composite (SMC) core, providing ease of manufacturing for micromachine applications without silicon steel laminations. The inset motor can offer an additional reluctance torque and higher torque density with a lower usage amount of permanent magnet. A 15 mm diameter inset motor was developed with the thickness of a tile-type permanent magnet which is limited to 1 mm by the manufacturer. The motor was designed with high torque density and low torque ripple by varying the interpole iron width for the rotor. Two inset motors were made using both SMC and silicon steel materials for comparison. The performance of the SMC motor was inferior to the silicon steel motor, but it still meets the specifications of the commercial market. If the thickness of the tile-type permanent magnet is further reduced, the micro inset motor with a SMC core can be easily mass-manufactured using powder sintering.

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