scholarly journals Design And Rotor Geometry Analysis Of Permanent Magnet–Assisted Synchronous Reluctance Machines Using Ferrite Magnet

2015 ◽  
Vol 66 (6) ◽  
pp. 311-316 ◽  
Author(s):  
Zhiwei Zhang ◽  
Libing Zhou
Keyword(s):  
Permanent Magnet ◽  
Low Cost ◽  
Induction Machines ◽  
Synchronous Machines ◽  
Permanent Magnet Synchronous Machines ◽  
Switched Reluctance ◽  
Torque Density ◽  
Switched Reluctance Machines ◽  
Geometry Analysis ◽  
Electromagnetic Performance

Abstract Various electric machines can be the candidate for electric vehicles applications, including induction machines, permanent magnet synchronous machines, switched reluctance machines, etc. Another class of machine, which has been relatively ignored, is synchronous reluctance machines. In order to enhance and increase torque density of pure synchronous reluctance machines, the low cost permanent magnet can be inserted into rotor lamination to contribute torque production, which is so-called permanent magnet-assisted synchronous reluctance machines. This paper presents the design and rotor geometry analysis of low cost ferrite permanent magnet-assisted synchronous reluctance machines with transversally-laminated rotor. The advanced finite element method will be employed to calculate d-axis and q-axis inductance variation with rotor geometric parameters. The electromagnetic performance of optimized permanent magnet-assisted synchronous reluctance machines will be evaluated as well.

scholarly journals Ferrites and Different Winding Types in Permanent Magnet Synchronous Motor

2012 ◽  
Vol 63 (3) ◽  
pp. 162-170 ◽  
Author(s):  
Peter Sekerák ◽  
Valéria Hrabovcová ◽  
Juha Pyrhönen ◽  
Lukáš Kalamen ◽  
Pavol Rafajdus ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
High Power ◽  
Low Cost ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Synchronous Machines ◽  
Stator Winding ◽  
Permanent Magnet Synchronous Machines ◽  
The Third ◽  
Slot Opening

Ferrites and Different Winding Types in Permanent Magnet Synchronous MotorThis paper deals with design of permanent magnet synchronous machines with ferrites. The ferrites became popular due to their low cost and cost increasing of NdFeB. The progress in ferrite properties in the last decade allows the use of ferrites in high power applications. Three models of ferrite motors are presented. It is shown that also the type of stator winding and the shape of the slot opening have an important effect on the PMSM properties. The first motor has a distributed winding, the second motor has concentrated, non-overlapping winding and open stator slots. The third motor has a concentrated non-overlapping winding and semi - open slots. All models are designed for the same output power and they do not have the same dimensions. The paper shows how important the design of an electric machine is for excellent motor properties or better to say how the motor properties can be improved by an appropriate design.

Study and design of dual stator permanent magnet machine with spoke-type configurations using phase-group concentrated-coil windings

2020 ◽  
Vol 64 (1-4) ◽  
pp. 1381-1389
Author(s):  
Dezhi Chen ◽  
Chengwu Diao ◽  
Zhiyu Feng ◽  
Shichong Zhang ◽  
Wenliang Zhao
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnets ◽  
Low Cost ◽  
Dynamic Performance ◽  
Torque Ripple ◽  
Permanent Magnet Machine ◽  
Torque Density ◽  
Phase Group ◽  
High Torque ◽  
Simulation Results

In this paper, a novel dual-stator permanent magnet machine (DsPmSynM) with low cost and high torque density is designed. The winding part of the DsPmSynM adopts phase-group concentrated-coil windings, and the permanent magnets are arranged by spoke-type. Firstly, the winding structure reduces the amount of copper at the end of the winding. Secondly, the electromagnetic torque ripple of DsPmSynM is suppressed by reducing the cogging torque. Furthermore, the dynamic performance of DsPmSynM is studied. Finally, the experimental results are compared with the simulation results.

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