Next Article in Journal
Symmetrical Loss of Excitation Fault Diagnosis in an Asynchronized High-Voltage Generator
Previous Article in Journal
Integrated Energy System Configuration Optimization for Multi-Zone Heat-Supply Network Interaction
Article Menu
Issue 11 (November) cover image

Export Article

Open AccessFeature PaperArticle
Energies 2018, 11(11), 3053; https://doi.org/10.3390/en11113053

Analysis of Torque Ripple and Cogging Torque Reduction in Electric Vehicle Traction Platform Applying Rotor Notched Design

1
EV Components & Materials R&D Group, Korea Institute of Industrial Technology, 6 Cheomdan-gwagiro 208 beon-gil, Buk-gu, Gwangju 61012, Korea
2
Department of Electrical Engineering, Chonnam National University, 77 Youngbong-ro, Buk-gu, Gwangju 61186, Korea
3
Robotics and Virtual Engineering, Korea University of Science and Technology, Daejeon 34113, Korea
*
Author to whom correspondence should be addressed.
Received: 9 October 2018 / Revised: 22 October 2018 / Accepted: 29 October 2018 / Published: 6 November 2018
(This article belongs to the Special Issue Energy Efficiency in Electric Devices, Machines and Drives)
Full-Text   |   PDF [2562 KB, uploaded 6 November 2018]   |  

Abstract

Drive motors, which are used in the drive modules of electric cars, are interior permanent magnet motors. These motors tend to have high cogging torque and torque ripple, which leads to the generation of high vibration and noise. Several studies have attempted to determine methods of reducing the cogging torque and torque ripple in interior permanent magnet motors. The primary methods of reducing the cogging torque involve either electric control or mechanical means. Herein, the authors focused on a mechanical method to reduce the cogging torque and torque ripple. Although various methods of reducing vibration and noise mechanically exist, there is no widely-known comparative analyses on reducing the vibration and noise by designing a notched rotor shape. Therefore, this paper proposes a method of reducing vibration and noise mechanically by designing a notched rotor shape. In the comparative analysis performed herein, the motor stator and rotor were set to be the same size, and electromagnetic field analysis was performed to determine a notch shape that is suitable for the rotor and that generates reasonable vibration and noise. View Full-Text
Keywords: interior permanent magnet synchronous motor; torque ripple; cogging torque; electric vehicle; notch interior permanent magnet synchronous motor; torque ripple; cogging torque; electric vehicle; notch
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Hwang, M.-H.; Lee, H.-S.; Cha, H.-R. Analysis of Torque Ripple and Cogging Torque Reduction in Electric Vehicle Traction Platform Applying Rotor Notched Design. Energies 2018, 11, 3053.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top