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Design and Performance Analysis of Five-Phase Fault-Tolerant Spoke-Type PM Motor with Two Distinctive Rotor Topology for Electric Vehicle Traction Application

Design and Performance Analysis of Five-Phase Fault-Tolerant Spoke-Type PM Motor with Two Distinctive Rotor Topology for Electric Vehicle Traction Application
	© 2023 by IJETT Journal
	Volume-71 Issue-1
	Year of Publication : 2023
	Author : Stephen Eduku, Joseph Sekyi-Ansah, Mohammed Okoe Alhassan, Ebenezer Narh Odonkor
	DOI : 10.14445/22315381/IJETT-V71I1P215

How to Cite?

Stephen Eduku, Joseph Sekyi-Ansah, Mohammed Okoe Alhassan, Ebenezer Narh Odonkor, "Design and Performance Analysis of Five-Phase Fault-Tolerant Spoke-Type PM Motor with Two Distinctive Rotor Topology for Electric Vehicle Traction Application," International Journal of Engineering Trends and Technology, vol. 71, no. 1, pp. 164-177, 2023. Crossref, https://doi.org/10.14445/22315381/IJETT-V71I1P215

Abstract
In this paper, a five-phase fault-tolerant spoke-type permanent magnet (PM) motor with two distinctive rotor topologies is designed and analyzed for electric vehicles (EV). Meanwhile, the designed topologies considered in this paper are classified according to the rotor topology. They are termed the modular rotor spoke-type PM (MRSTPM) motor and the union rotor spoke-type PM (URSTPM) motor. However, for fair and comprehensive performance analysis, the same design specifications, such as the PM volume, rotor and stator dimensions, slot-pole combination, and winding arrangement, are adopted for both topologies. The electromagnetic performances of the two topologies with their static characteristics, namely, the flux-linkage, back-EMF, cogging-torque, output-torque, losses, and torque-ripple, are analyzed to unveil the opportunities and limitations of the motors. Moreover, the electromagnetic performances of both topologies are analyzed and compared using the finite element analysis (FEA) principle. However, the obtained results depict that the MRSTPM-motor exhibit slightly higher output-toque, power density, and torque density than the URSTPM-motor. Nonetheless, it is imperative to highlight that the URSTPM-motor is a promising design candidate for an electric vehicle (EV) traction application. It unveils an enhanced fault-tolerant capacity, reduced cogging torque, lower torque ripple, minimal motor losses, and higher efficiency compared to the MRSTPM-motor topology. Besides, the URSTPM-motor has the additional merit of easy rotor construction compared to the MRSTPM-motor topology.

Keywords
Spoke-Type PM motor, Fault-Tolerant, Finite Element Analysis (FEA), Electric Vehicle (EV).

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