This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Test and Analysis of Electromagnetic Noise of an Electric Motor in a Pure Electric Car
Technical Paper
2019-01-1492
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Compared with the low-frequency ignition order of mechanical and combustion noise of an internal combustion engine, the noise of electric drive assembly of electric vehicles is mainly the high-frequency whining noise generated by electromagnetic forces of motors and gear meshing of reducers, as well as the high-frequency umbrella-shape noise generated by DC/AC pulse width modulation. Although the radiated sound power of these high frequency noise is far less than that of an internal combustion engine, the high frequency noise of the motor and the reducer is subjectively quite annoying. This paper studies the characteristics of electromagnetic noise of a permanent magnet synchronous motor in an electric car. By testing and analyzing of noise sources of an electric motor in the car and on a test rig, the spatial order characteristics and amplitude-frequency characteristics of the electromagnetic forces are revealed. The noise orders are multiples of the number of motor poles. The most critical order is 48th order, and its spatial order is 0th order. The peak of this 48th order is due to the stator’s 0th breathing mode being excited by the 48th frequency order electromagnetic force. Through theoretical calculation of the air-gap magnetic field and electromagnetic force wave, it is concluded that the 48th order electromagnetic force results from interaction of the rotor magnetic field and slotted core of the stator, and due to stator current harmonics. In this study, it is demonstrated by increasing the air gap by 0.2mm experimentally, the electromagnetic force can be reduced, resulting in the reduction of the motor noise by 5dB.
Recommended Content
Authors
Topic
Citation
Kang, Q., Gu, P., Gong, C., and Zuo, S., "Test and Analysis of Electromagnetic Noise of an Electric Motor in a Pure Electric Car," SAE Technical Paper 2019-01-1492, 2019, https://doi.org/10.4271/2019-01-1492.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 | ||
Unnamed Dataset 4 |
Also In
References
- Cong-gan , M. , Shu-guang , Z. , Qing , S. et al. Order Feature Analysis of Electromagnetic Noise in a Permanent Magnet Synchronous Motor Considering Current Harmonics Journal of Vibration and Shock. 15 108 113 2014 10.13465/j.cnki.jvs.2014.15.019
- Dupont , J.-B. , Bouvet , P. , and Wojtowicki , J.-L. Simulation of the Airborne and Structure-Borne Noise of Electric Powertrain: Validation of the Simulation Methodology SAE Technic Paper 2013-01-2005 2013 10.4271/2013-01-2005
- Dupont , J.B. , Aydoun , R. , and Bouvet , P. Simulation of the Noise Radiated by an Automotive Electric Motor: Influence of the Motor Defects SAE Technic Paper 2014-01-2070 2014 10.4271/2014-01-2070
- Mehrgou , M. , Zieher , F. , and Priestner , C. NVH and Acoustics Analysis Solutions for Electric Drives SAE Technic Paper 2016-01-1802 2016 10.4271/2016-01-1802
- Mehrgou , M. , de Madinabeitia , I.G. , Graf , B. NVH Aspects of Electric Drives-Integration of Electric Machine, Gearbox and Inverter SAE Technic Paper 2018-01-1556 2018 10.4271/2018-01-1556
- Holehouse , R. , Shahaj , A. , Michon , M. et al. Integrated Approach to Electro-Mechanical System NVH Analysis SAE Technic Paper 2018-01-1499 2018 10.4271/2018-01-1499
- Tang , C. , Limsuwan , N. , Chandrasekhar , N. Current Harmonics Impact on Torque Ripple in PM Machine Drive System SAE Technic Paper 2017-01-1231 2017 10.4271/2017-01-1231
- He , S. and Design , N.V.H. Analysis and Optimization of Chevrolet Bolt Battery Electric Vehicle SAE Technic Paper 2018-01-0994 2018 10.4271/2018-01-0994
- Park , J. and Lee , H.D. Study on the Vehicle Cabin Noise Employing the Interfacial Friction in Double Layered Frames Used in Electric Vehicle Traction Motors SAE Technic Paper 2013-01-2590 2013 10.4271/2013-01-2590
- Honjo , S. , Iwai , A. , and Suzumori , H. Development of Traction Motor for new Fuel Cell Vehicle and new Electric Vehicle SAE Technic Paper 2018-01-0450 2018 10.4271/2018-01-0450
- Nakada , T. , Ishikawa , S. , and Oki , S. Development of an Electric Motor for a Newly Developed Electric Vehicle SAE Technic Paper 2014-01-1879 2014 10.4271/2014-01-1879
- Ma , C. , Liu , Q. , Wang , D. et al. A Novel Black and White Box Method for Diagnosis and Reduction of Abnormal Noise of Hub Permanent-Magnet Synchronous Motors for Electric Vehicles [J] IEEE Transactions on Industrial Electronics 63 2 1153 1167 2016 10.1109/TIE.2015.2481361
- Ma , C. , Li , Q. , Deng , L. et al. A Novel Sound Quality Evaluation Method of the Diagnosis of Abnormal Noise in Interior Permanent-Magnet Synchronous Motors for Electric Vehicles [J] IEEE Transactions on Industrial Electronics 64 5 3883 3891 2017 10.1109/TIE.2017.2652718
- Ma , C. , Chen , C. , Li , Q. et al. Analytical Calculation of No-Load Magnetic Field of External Rotor Permanent Magnet Brushless Direct Current Motor Used as In-Wheel Motor of Electric Vehicle [J] IEEE Transactions on Magnetics 54 4 1 6 2018 10.1109/TMAG.2017.2779861
- Ma , C. , Li , Q. , Lu , H. et al. Analytical Model for Armature Reaction of Outer Rotor Brushless Permanent Magnet DC Motor [J] IET Electric Power Applications 12 5 651 657 2018 10.1049/iet-epa.2017.0751
- Zarko , D. , Ban , D. , and Lipo , T. Analytical Solution for Electromagnetic Torque in Surface Permanent-Magnet Motors Using Conformal Mapping [J] IEEE Transactions on Magnetics 45 7 2943 2954 2009 10.1109/tmag.2009.2014689
- Gieras , J.F. , Wang , C. , and Lai , J.C. Noise of Polyphase Electrical Motors Boca Raton CRC Press 2006 60 67 0-8247-2381-3
- Lennström , D. , Johnsson , R. , and Nykänen , A. Determination of Radiated Sound Power from an Electric Rear Axle Drive In-Situ and Its Contribution to Interior Noise SAE Technic Paper 2013-01-9120 2013 10.4271/2013-01-9120
- shuguang , Z. , Yandan , Z. , Jiao , Y. et al. Optimization of Vibration and Noise in Permanent Magnet Synchronous Motor Considering Stator Anisotropy Journal of XI'AN Jiaotong University 51 5 60 68 2017 10.7652/xjtuxb201705010
- Hofmann , A. , Al-Dajani , A. , Bosing , M. , et al. Direct Instantaneous Force Control: A Method to Eliminate Mode-0-Borne Noise in Switched Reluctance Machines IEEE International Electric Machines & Drives Conference 2013 Chicago, IL May 12-15 2013