Comparison of two different winding topologies for external-rotor five-phase PM-assisted synchronous reluctance motor in vehicle applications

2017 ◽  
Author(s):  
Md. Zakirul Islam ◽  
Sai Sudheer Reddy Bonthu ◽  
Seungdeog Choi
Keyword(s):  
Synchronous Reluctance Motor ◽  
Reluctance Motor ◽  
External Rotor

scholarly journals Design of External Rotor Ferrite-Assisted Synchronous Reluctance Motor for High Power Density

2021 ◽  
Vol 11 (7) ◽  
pp. 3102
Author(s):  
Md. Zakirul Islam ◽  
Seungdeog Choi ◽  
Malik E. Elbuluk ◽  
Sai Sudheer Reddy Bonthu ◽  
Akm Arafat ◽  
...  
Keyword(s):  
Rare Earth ◽  
Permanent Magnets ◽  
Design Procedure ◽  
Lumped Parameter Model ◽  
High Power Density ◽  
Analytical Design ◽  
Synchronous Reluctance Motor ◽  
Lumped Parameter ◽  
Reluctance Motor ◽  
External Rotor

The rare-earth (RE) permanent magnets (PM) have been increasingly adopted in traction motor application. However, the RE PM is expensive, less abundant, and has cost uncertainties due to limited market suppliers. This paper presents a new design of a RE-free five-phase ferrite permanent magnet-assisted synchronous reluctance motor (Fe-PMaSynRM) with the external rotor architecture with a high saliency ratio. In such architecture, the low magnetic coercivity and demagnetization risk of the ferrite PM is the challenge. This limits the number of flux barriers, saliency ratio, and reluctance torque. A precise analytical design procedure of rotor and stator configuration is presented with differential evolution numerical optimizations by utilizing a lumped parameter model. A 3.7 kW prototype is fabricated to validate the proposed idea.

scholarly journals Study of the Synchronous Reluctance Motor Design

2016 ◽  
Vol 53 (4) ◽  
pp. 22-29 ◽  
Author(s):  
J. Dirba ◽  
L. Lavrinovicha ◽  
R. Dobriyan
Keyword(s):  
Magnetic Flux ◽  
Torque Ripple ◽  
Electromagnetic Torque ◽  
Synchronous Reluctance Motor ◽  
Reluctance Motor ◽  
Motor Design ◽  
Twofold Decrease ◽  
External Rotor

AbstractThe paper focuses on studying the external-rotor synchronous reluctance motor. The analysis is performed to estimate the influence of the number of stator slots and non-magnetic areas in the rotor (i.e., flux barriers) on the electromagnetic torque and torque ripple of the studied motor. It is concluded that the increase in the number of stator slotsZ= 6 toZ= 18 causes an approximately twofold decrease in the ripple factor, but torque increases by 5 %. Electromagnetic torque will be increased approximately by 24 %, if non-magnetic flux barriers are created in the rotor of the studied synchronous reluctance motor.

scholarly journals Prospects for Use of Synchronous Reluctance Motors in Low-Power Electrical Devices

2015 ◽  
Vol 52 (2) ◽  
pp. 40-48 ◽  
Author(s):  
J. Dirba ◽  
L. Lavrinovicha ◽  
R. Dobriyan
Keyword(s):  
Low Power ◽  
Power Devices ◽  
Switched Reluctance Motors ◽  
Switched Reluctance ◽  
Synchronous Reluctance Motor ◽  
Wide Range ◽  
Electrical Devices ◽  
Reluctance Motor ◽  
Improved Design ◽  
External Rotor

Abstract This paper focuses on studying the synchronous reluctance motors as an alternative to low-power commutator motors. Analysis is done for the improved design of synchronous reluctance motor with a segmental external rotor. Relevant equations and a suitable method are proposed for calculating characteristics of the synchronous reluctance motors operating in a specific mode with electronic commutation as switched reluctance motors. It is concluded that synchronous reluctance motors in this mode can provide a wide range of characteristics and are quite competitive with commutator motors used in low-power devices.

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