Development of Optimal Design Method with Thermo-Magnetic Field Coupling Analysis for Miniaturization of Permanent-Magnet Synchronous Motors

2011 ◽  
Vol 131 (11) ◽  
pp. 1301-1308 ◽  
Author(s):  
Hideki Kitamura ◽  
Norihisa Iwasaki ◽  
Masashi Kitamura ◽  
Hideaki Mori ◽  
Masahide Yamasaki ◽  
...  
2013 ◽  
Vol 183 (2) ◽  
pp. 29-38
Author(s):  
Hideki Kitamura ◽  
Norihisa Iwasaki ◽  
Masashi Kitamura ◽  
Hideaki Mori ◽  
Masahide Yamasaki ◽  
...  

Author(s):  
Behrooz Rezaeealam ◽  
Farhad Rezaee-Alam

Purpose The purpose of this paper is to present a new optimal design for integral slot permanent magnet synchronous motors (PMSMs) to shape the air-gap magnetic field in sinusoidal and to reduce the cogging torque, simultaneously. Design/methodology/approach For obtaining this new optimal design, the influence of different magnetizations of permanent magnets (PMs), including radial, parallel and halbach magnetization is investigated on the performance of one typical PMSM by using the conformal mapping (CM) method. To reduce the cogging torque even more, the technique of slot opening shift is also implemented on the stator slots of analyzed PMSM without reduction in the main performance, including the air-gap magnetic field, the average torque and back-electromotive force (back-EMF). Findings Finally, an optimal configuration including the Hat-type magnet poles with halbach magnetization on the rotor and shifted slot openings on the stator is obtained through the CM method, which shows the main reduction in cogging torque and the harmonic content of air-gap magnetic field. Practical implications The obtained optimal design is completely practical and is validated by comparing with the corresponding results obtained through finite element method. Originality/value This paper presents a new optimal design for integral slot PMSMs, which can include different design considerations, such as the reduction of cogging torque and the total harmonic distortion of air-gap magnetic field by using the CM method.


IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 171184-171194
Author(s):  
Ya Huang ◽  
Li Jiang ◽  
Peng Fu ◽  
Zhengyi Huang ◽  
Xuesong Xu

2012 ◽  
Vol 157-158 ◽  
pp. 106-109
Author(s):  
Xin Yan Qin

In this paper, an electromagnetic design method for a novel DC Lorentz Motor for micromanipulation is described. To optimize permanent magnet (PM) array and minimize the magnetic field coupling among PMs, the distribution of magnetic field and the fluctuation of Lorentz force are obtained by the 3D finite-element method (FEM). Through the electromagnetic analysis, an optimized distribution and shape of PMs are found. Finally, the optimized DC Lorentz motor is manufactured. These simulation results are verified by those of the experiment results, which presents the finite element model and simulation results are reasonable.


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