Hybrid Switched Reluctance Motors for Electric Vehicle Applications with High Torque Capability without Permanent Magnet

Vijina Abhijith (), M. J. Hossain (), Gang Lei, Premlal Ajikumar Sreelekha (), Tibinmon Pulimoottil Monichan and Sree Venkateswara Rao
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Vijina Abhijith: School of Electrical and Data Engineering, University of Technology Sydney, Ultimo, NSW 2007, Australia
M. J. Hossain: School of Electrical and Data Engineering, University of Technology Sydney, Ultimo, NSW 2007, Australia
Gang Lei: School of Electrical and Data Engineering, University of Technology Sydney, Ultimo, NSW 2007, Australia
Premlal Ajikumar Sreelekha: Entuple E-Mobility, Diamond District, HAL Old Airport Road, Kodihalli, Bangaluru 560008, India
Tibinmon Pulimoottil Monichan: Entuple E-Mobility, Diamond District, HAL Old Airport Road, Kodihalli, Bangaluru 560008, India
Sree Venkateswara Rao: Gyrate the Motor Inside, Shimla Block, Hill Country, Bachupallay, Telangana 500090, India

Energies, 2022, vol. 15, issue 21, 1-16

Abstract: In electric vehicle (EV) applications, hybrid excitation of switched reluctance motors (HESRMs) are gaining popularity due to their advantages over other EV motors. The benefits include control flexibility, simple construction, high torque/power density, and the ability to operate over a broad speed range. However, modern HESRMs are constructed by increasing the air gap flux density with permanent magnets (PMs) in the excitation system in order to generate more electromagnetic torque. This study aims to investigate a new topology for increasing the torque capabilities of HESRM without the use of permanent magnets (PMs) or other rare-earth components. This paper provides a comprehensive evaluation of the static and dynamic characteristics, software analysis using the Ansys 2D finite element method (FEM), and an experimental demonstration of the real-time motor with an advanced control strategy in MATLAB/Simulink. Our simulation and experimental results for a machine with 12/8 poles and a machine rating of 1.2 kW indicate that the HESRM designed without PMs has greater torque capability and efficiency than the conventional SRM. The proposed HESRM without PMs has a high torque/power density and a higher torque per ampere across the entire speed range, making it suitable for EV applications.

Keywords: switched reluctance motor (SRMs); hybrid excitation of SRM (HESRM); hybrid excitation of SRM without a permanent magnet; permanent magnet (PM); electric vehicle motor (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: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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