Electromagnetic evaluation of an in-wheel double rotor axial-flux switched reluctance motor for electric traction

Abstract

Abstract.In this paper, a novel in-wheel double rotor axialflux switched reluctance motor for electric traction is presented. The proposed double rotor axial-flux switched reluctance motor has a particular disposition of the stator and rotor poles that provides short flux path without flux reversal. The ferromagnetic pieces of the stator and the rotor are built using soft magnetic composites. Electromagnetic analysis is performed using three dimensional finite element analyses, 3D FEA. Matlab-Simulink simulation coupled with the results of finite element analysis proves that the proposed motor drive is suitable for the propulsion of a given E-scooter.

Design of a Novel Modular Axial-Flux Double Rotor Switched Reluctance Drive

“…In this paper, a three phase AFSRM with an inner stator of twelve poles and two outer rotors with ten poles is designed. It is a particular case of a new type of AFSRM with a new arrangement of the stator and the rotor poles and with short flux paths without flux reversal, which has been previously reported [13]. The ten ferromagnetic poles of each rotor are joined on the opposite side of the air-gap, by means of an annular disk also of ferromagnetic material.…”

“…Recently, Lin proposed a variation of the output equation for this type of machine [10] and Torkaman et al [11] provided a review of the design of AFSRM including a comparison, considering the assessment of some performance indices among different topologies. This paper proposes a new procedure, taking into account saturation, for the sizing of a particular type of an AFSRM with an inner stator and two exterior rotors that have a new distribution of the stator and rotor poles resulting in short magnetic paths with no flux reversal that have been presented in [12][13][14][15][16]. The machine has been built modularly with stator and rotor poles made with SMC parts.…”

Electromagnetic simulation of an external rotor PM hub motor power device for distributed driving electric vehicle

“…The average electromagnetic torque T av of PM brushless direct current motor can be expressed as equation (10). 23 T…”

“…Where, K c = p 4 K 2 eff K av K e , K w is the winding coefficient of the phase winding, A is an average electromagnetic load, and B m is a magnetic flux density of air gap. The related parameters are defined by equation (10).…”

“…Lei et al 9 designed, simulated and tested the prototype motor, but only the electromagnetic load of motor was considered during design process. Andrada et al 10 determined the key parameters of hub motor, and carried out electromagnetic field simulation. However, the electromagnetic design process of hub motor was not given.…”