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An Integrated Traction Drive with a High Speed Surface Permanent Magnet External Rotor Motor for Electric Vehicles

Conference ·
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This work presents the detailed design of an outer rotor motor and integrated drive for passenger electric vehicles. The motor uses non-heavy rare earth permanent magnets and operates at a top speed of 20,000rpm. In-slot ceramic heat exchangers are utilized for the cooling of the windings. The external rotor configuration of the motor leaves a significant amount of space in the stator bore, which is leveraged for the integration of the power electronics. A high speed external rotor motor creates a number of mechanical, thermal and assembly challenges and this work presents detailed thermal, mechanical and rotordynamics analysis.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office
DOE Contract Number:
AC36-08GO28308
OSTI ID:
2305402
Report Number(s):
NREL/CP-5400-86374; MainId:87147; UUID:4e635c29-33e6-4231-a669-fb378ec58f90; MainAdminId:71798
Resource Relation:
Conference: Presented at the IEEE Energy Conversion Congress and Exposition (ECCE), 29 October - 2 November 2023, Nashville, Tennessee
Country of Publication:
United States
Language:
English

References (18)

Electrical Propulsion System Design of Chevrolet Bolt Battery Electric Vehicle journal January 2019
Electric Drive Technology Trends, Challenges, and Opportunities for Future Electric Vehicles journal June 2021
Design and Flux-Weakening Control of an Interior Permanent Magnet Synchronous Motor for Electric Vehicles journal October 2016
Cooling of Windings in Electric Machines via 3D Printed Heat Exchanger conference September 2018
Development of a permanent magnet outer rotor direct drive for use in wheel-hub drives conference September 2014
Analysis of Temperature Field and Water Cooling of Outer Rotor In-Wheel Motor for Electric Vehicle journal January 2019
Development of a 20-Pole–24-Slot SPMSM With Consequent Pole Rotor for In-Wheel Direct Drive journal January 2016
Cost reduction of a permanent magnet in-wheel electric vehicle traction motor conference September 2014
A high-speed, high-frequency, air-core PM machine for aircraft application conference February 2016
Multi-physics optimization for high-frequency air-core permanent-magnet motor of aircraft application conference May 2017
Rotordynamic Assessment for an Inside Out, High Speed Permanent Magnet Synchronous Motor conference August 2020
Enabling Technologies for Compact Integrated Electric Drives for Automotive Traction Applications conference June 2019
Integrated motor drives: state of the art and future trends journal September 2016
A High-Speed High-Power-Density Non-Heavy Rare-Earth Permanent Magnet Traction Motor conference October 2020
Design considerations for permanent magnet synchronous motors for flux weakening applications journal January 1998
Traction motor design trade-offs with additively manufactured anisotropic bonded magnets conference June 2023
Capacitor Technologies: Characterization, Selection, and Packaging for Next-Generation Power Electronics Applications journal June 2022
High-Energy Density Capacitors for Electric Vehicle Traction Inverters conference June 2020

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Related Subjects

ADVANCED PROPULSION SYSTEMS
ceramic heat exchanger
integrated electric drive
outer rotor motor
power electronics
thermal management