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Current Harmonics, Torque Ripple and Whine Noise of Electric Machine in Electrified Vehicle Applications
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 28, 2017 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Noise and Vibration (NVH) characteristic of an electric machine (e-Machine) is the outcome of complex interaction between source level disturbances and the surrounding structure to which the e-Machine is attached. Key e-Machine metrics that objectively quantify source level disturbance include torque ripple and radial electro-magnetic forces. These disturbances can radiate directly from the e-Machine housing (air-borne component) and also can be transmitted through the structural attachments like stator bolts, stator ring, powertrain mounts etc. (structure-borne component). In the e-machine driven by PWM switching inverter, current is not perfectly sinusoidal but contain different level of harmonics. Current harmonics impact Torque ripple, which in turn would translate into undesirable noise and vibration. There is very limited literature referencing the influence of current harmonics on torque ripple and e-machine NVH. This paper specifically addresses the impact of current harmonics on the 6th and 12th electrical orders of the torque ripple and relevant e-Machine whine noise employing statistical correlation & regression analysis based on the data sets acquired from dynamometer testing and finite element based CAE calculations.
|Technical Paper||Current Harmonics Impact on Torque Ripple in PM Machine Drive System|
|Technical Paper||Radiating Panel NVH Performance Evaluations for Vehicle Design|
|Technical Paper||Attenuation of Vehicle Noise using Different Trunk Insulation Systems|
CitationChandrasekhar, N., Tang, C., Limsuwan, N., Hetrick, J. et al., "Current Harmonics, Torque Ripple and Whine Noise of Electric Machine in Electrified Vehicle Applications," SAE Technical Paper 2017-01-1226, 2017, https://doi.org/10.4271/2017-01-1226.
Data Sets - Support Documents
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- Eisele Georg , Wolff Klaus , Wittler Michael , Abtahi Roozbeh NVH of Hybrid vehicles, FEV Motorentechnik GmbH Aachen, germany
- Zhang Julia Torque Ripple Compensation of Interior Permanent Magnet Synchronous Machine Propulsion System Oregon State University
- Liang Feng , Degner Michael , Leonardi Franco , Munoz Alfredo , Torque Ripple production Mechanism in Electric Machines Ford Research & Advanced Engineering Technical Report
- Tang , C. , Limsuwan , N. , Chandrasekhar , N. , Ma , Z. Current Harmonics Impact on Torque Ripple in PM Machine Drive System SAE Technical Paper 2017-01-1231 2017