T16.9 - A Ferrite based Carbon Reinforced Composite Wrapped IPM Rotor Design for High-Speed Traction Applications

Wednesday, March 19, 2025

11:40 AM – 12:00 PM ET

Location: Level Three, A314

Technical Lecture Presenter(s)

Md Rashedur Rahman (he/him/his)

Mississippi State University

Presentation Paper

Co-Author(s)

MI

Md Khurshedul Islam

ASML
Md Moniruzzaman (he/him/his)

Mississippi State University
Seungdeog Choi

Mississippi State University
HK

Han-Gyu Kim

Mississippi state university
AW

Andrew Walters

Mississippi state university

This paper presents the design and analysis of a novel high-speed, multi-layer ferrite-based interior permanent magnet motor (HSFR) incorporating a reinforced carbon composite (RCC) rotor. While ferrite-based IPMs offer a cost-effective alternative to rare-earth (RE) magnet motors for traction applications, their mechanical limitations at high speeds necessitate innovative design approaches. The RCC is strategically integrated in both circumferential (sleeve) and radial (rib) directions to optimize rotor strength. Additionally, a six-phase winding configuration is implemented to augment torque output, compensating for the inherent lower magnetic energy density of ferrite magnets. A 4kW rated, maximum 30,000rpm, six-phase ferrite-based IPM with an RCC-wrapped internal permanent magnet rotor (6PF-CCW-IPM) is developed through analytical optimization and finite element analysis (FEA). Performance comparisons with equivalent reference design validate the effectiveness of the proposed design in achieving high-spee