Affiliations: [a] Department of Electronic Systems Engineering, Hanyang University, Ansan-si, Gyeonggi-do, Korea | [b] Intelligent Mechatronics Research Center, Korea Electronics Technology Institute (KETI), South Korea
Correspondence:
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Corresponding author: Byung-il Kwon, Department of Electronic Systems Engineering, 1271 Sa 3-dong, Sangrok-gu Ansan-si Gyeonggi-do, 426-791, South Korea. E-mail: [email protected]
Abstract: This paper presents the optimal design of a dual airgap spoke type permanent magnet vernier machine with dual stator dual winding (DDW) and dual stator single winding (DSW) models having an equal outer diameter and the same magnet volumes. The models were compared at a similar power and volume basis. Latin Hypercube Sampling and the Kriging Method is used to optimize the stator slots in DSW models for improved performance. 2D-Finite Element Method (FEM) was used to verify the results and compare the both models. The DSW model performs similar in terms of average torque, back EMF and shows a better performance regarding torque ripple, power factor and core loss as compared to DDW model having same dimensions on similar power and volume basis. Furthermore, DSW model has the advantage of having lesser manufacturing complexity and thermal issue posed by inner stator winding.
Keywords: Dual airgap dual winding, dual airgap single winding, latin hypercube sampling, finite element method
