Performance Analysis of Axial-Flux Induction Motor with Skewed Rotor

Fatma Keskin Arabul,Yasemin Oner,Ibrahim Senol

doi:10.3390/en13194991

Fatma Keskin Arabul, Yasemin Oner + Show 1 more

Open Access

https://doi.org/10.3390/en13194991

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Journal: Energies	Publication Date: Sep 23, 2020
Citations: 16	License type: CC BY 4.0

Affiliation: Yıldız Technical University

Abstract

In recent years, with developing technology in the field of electrical machines, more efficient and high power density electric motors have been produced. The use of high energy efficiency motors gains importance due to the increase in global energy demand. The main purpose of this study was to design an Axial Flux Induction Motor (AFIM) with the same efficiency class as the Radial Flux Induction Motor (RFIM) in premium efficiency (IE3) class which is used commonly in industrial applications. Various AFIMs are designed with different rotor slot numbers and performance analyses as efficiency and torque ripple changes are investigated. It is known that torque ripple is one of the key parameters in electrical machine design which should be kept as low as possible without decreasing efficiency and torque. Accordingly, AFIMs’ rotor slots are skewed considering the stator and rotor slot numbers. The use of a Soft Magnetic Composites (SMC) material in design is also investigated. As a result of the analyses, many premium efficiency classes for AFIMs are obtained. In addition, using SMC material and skewing the rotor slots provides that torque ripples be reduced.

Highlights

Today, more than 40% of the global energy consumption amount is consumed by induction motors and this rate exceeds 70% in the industry [1,2]
Transient analyses are carried out and torque values are calculated with the help of ANSYS Maxwell program
Many Axial Flux Induction Motor (AFIM) are designed to be in the same energy efficiency class as the Radial Flux Induction Motor (RFIM) referenced

Summary

Introduction

More than 40% of the global energy consumption amount is consumed by induction motors and this rate exceeds 70% in the industry [1,2]. These motors are key components of many industrial processes, with their reliability, and low cost of maintenance and construction [3,4]. In many countries around the world, many programs are encouraged to increase the use of high-efficiency motors.

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