Design and Analysis of a Dual Airgap Radial Flux Permanent Magnet Vernier Machine with Yokeless Rotor

Mudassir Raza Siddiqi, Tanveer Yazdan, Jun-Hyuk Im, Muhammad Humza and Jin Hur
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Mudassir Raza Siddiqi: Electrical Engineering Department, Incheon National University, Songdo 22012, Korea
Tanveer Yazdan: Electrical Engineering Department, The University of Lahore, Lahore 54000, Pakistan
Jun-Hyuk Im: Electrical Engineering Department, Incheon National University, Songdo 22012, Korea
Muhammad Humza: Electrical Engineering Department, Institute of Southern Punjab, Multan 60750, Pakistan
Jin Hur: Electrical Engineering Department, Incheon National University, Songdo 22012, Korea

Energies, 2021, vol. 14, issue 8, 1-15

Abstract: This paper presents a novel topology of dual airgap radial flux permanent magnet vernier machine (PMVM) in order to obtain a higher torque per magnet volume and similar average torque compared to a conventional PMVM machine. The proposed machine contains two stators and a sandwiched yokeless rotor. The yokeless rotor helps to reduce the magnet volume by providing an effective flux linkage in the stator windings. This effective flux linkage improved the average torque of the proposed machine. The competitiveness of the proposed vernier machine was validated using 2D finite element analysis under the same machine volume as that of conventional vernier machine. Moreover, cogging torque, torque ripples, torque density, losses, and efficiency performances also favored the proposed topology.

Keywords: dual airgap PMVM; finite element analysis; radial type; torque per magnet volume; yokeless rotor (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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