scholarly journals Robust Design of a Low-Cost Permanent Magnet Motor with Soft Magnetic Composite Cores Considering the Manufacturing Process and Tolerances

Energies ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 2025 ◽  
Author(s):  
Chengcheng Liu ◽  
Gang Lei ◽  
Bo Ma ◽  
Youguang Guo ◽  
Jianguo Zhu
Keyword(s):  
Robust Design ◽  
Manufacturing Process ◽  
Low Cost ◽  
Core Loss ◽  
Optimization Method ◽  
Magnetic Composite ◽  
Permanent Magnet Motor ◽  
Soft Magnetic ◽  
The Core ◽  
Soft Magnetic Composite

This paper uses the Taguchi method to optimize the manufacturing process and robust design of a low-cost permanent magnet motor with soft magnetic composite (SMC) cores. For the manufacturing process, SMC cores are produced by using the molding technology without any wire cutting costs. To maximize the relative permeability and minimize the core loss, the Taguchi method is employed to identify the best control factor values for the heat treatment of SMC cores based on a series of experimental results. Due to the manufacturing tolerances, there are significant uncertainties in the core densities and motor dimensions, which will result in big performance variations for the SMC motors in the batch production. To obtain a robust design less sensitive to these tolerances, the conventional Taguchi parameter design method and a sequential Taguchi optimization method are presented to maximize the average torque and minimize the core loss of a low-cost PM motor. Through comparison, it is found that the proposed optimization method is efficient. It can provide an optimal design with better motor performance and manufacturing quality. The proposed method will benefit the industrial production of cost-effective PM-SMC motors with robust and compact designs.

Influence of Heat Treatment Processing on the Magnetic Properties of Fe-3.5Si Soft Magnetic Composites in Material Application

2012 ◽  
Vol 578 ◽  
pp. 206-210
Author(s):  
Yuan Dong Peng ◽  
Zhi Yue Sun ◽  
Jun Wu Nie ◽  
Wen Jun Zhang ◽  
Zeng Guang Mao ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Magnetic Properties ◽  
Core Loss ◽  
Treatment Temperature ◽  
Magnetic Composite ◽  
Soft Magnetic ◽  
Magnetic Composites ◽  
The Core ◽  
Soft Magnetic Composite ◽  
Eddy Loss

In this paper, the effect of heat treatment processing on magnetic properties of Fe-3.5Si soft magnetic composite has been investigated. The thermal treatment improved the magnetic properties of Fe-3.5Si SMC materials. With the treatment temperature increasing, the permeability and eddy loss of the composites increase and the core loss and hysteresis loss decrease. The magnetic properties would be deteriorated at too high temperature. Annealed temperature at 750°C for 60min, the Fe-3.5Si soft magnetic composite has the optimum overall magnetic properties.

A novel flux switching claw pole machine with soft magnetic composite cores

2021 ◽  
pp. 1-21
Author(s):  
Chengcheng Liu ◽  
Qainyu Liu ◽  
Shaopeng Wang ◽  
Youhua Wang ◽  
Gang Lei ◽  
...  
Keyword(s):  
High Frequency ◽  
Permanent Magnets ◽  
Core Loss ◽  
Torque Ripple ◽  
Magnetic Composite ◽  
Soft Magnetic ◽  
The Core ◽  
Soft Magnetic Composite ◽  
Torque Coefficient ◽  
3D Finite Element Method

This paper proposes a novel flux switching claw pole machine (FSCPM) with soft magnetic composite (SMC) cores. The proposed FSCPM holds advantages of the conventional flux switching permanent magnet machine (FSPMM) and claw pole machine (CPM) with SMC cores. As permanent magnets are installed between the stator claw pole teeth, FSCPM has good flux concentrating ability, and the air gap flux density can be significantly improved. The torque coefficient of FSCPM is relatively high due to the applied claw pole teeth and global winding. FSCPM is mechanically robust because there are no windings or PMs on its rotor. Moreover, the core loss of FSCPM is relatively low for the SMC material has lower core loss at high frequency compared with silicon steels. The topology and operational principle of FSCPM are explained first. Several main dimensions of the machine are optimized to achieve better performance, based on 3D finite element method (FEM). Furthermore, the rotor skewing technology is adopted to reduce the cogging torque and torque ripple.

Intergranular insulated Fe/SiO 2 soft magnetic composite for decreased core loss

2016 ◽  
Vol 27 (4) ◽  
pp. 1189-1194 ◽  
Author(s):  
Jian Wang ◽  
Xi’an Fan ◽  
Zhaoyang Wu ◽  
Guangqiang Li
Keyword(s):  
Core Loss ◽  
Magnetic Composite ◽  
Soft Magnetic ◽  
Soft Magnetic Composite

Test Results of SMC Cores as Some Types of Motor Cores

2007 ◽  
Vol 534-536 ◽  
pp. 1369-1372
Author(s):  
Kazuo Asaka ◽  
Chio Ishihara ◽  
Yuuji Enomoto ◽  
Motoya Ito
Keyword(s):  
Composite Materials ◽  
Output Power ◽  
Core Loss ◽  
Motor Output ◽  
Magnetic Composite ◽  
Test Results ◽  
Soft Magnetic ◽  
Soft Magnetic Composite

Recently, SMC(Soft Magnetic Composite) materials were studied for their applications in many fields. We have developed a superior SMC for use as motor cores and are studying their applying effects [1]. It shows almost the same motor output power as laminated Si-steels of 0.35mm in thickness, although core loss of SMC is about 1.5 times that of the laminations. As shown in the results, the SMC motor core is sufficient for real use as a motor core. Furthermore, a 3-D shaped motor core made of SMC can improve approximately 20% of the output compared with the same size motor made of laminations.

Development of a New Low-Cost 3-D Flux Transverse Flux FSPMM With Soft Magnetic Composite Cores and Ferrite Magnets

2017 ◽  
Vol 53 (11) ◽  
pp. 1-5 ◽  
Author(s):  
Chengcheng Liu ◽  
Gang Lei ◽  
Bo Ma ◽  
Youhua Wang ◽  
Youguang Guo ◽  
...  
Keyword(s):  
Low Cost ◽  
Magnetic Composite ◽  
Soft Magnetic ◽  
Soft Magnetic Composite ◽  
Transverse Flux
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