Details
| Original language | English |
|---|---|
| Title of host publication | 2022 International Conference on Electrical Machines and Systems, ICEMS 2022 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (electronic) | 9781665493024 |
| ISBN (print) | 9781665493031 |
| Publication status | Published - 2022 |
| Event | 25th International Conference on Electrical Machines and Systems, ICEMS 2022 - Virtual, Online, Thailand Duration: 29 Nov 2022 → 2 Dec 2022 |
Abstract
In the design process of electrical machines for traction applications, a strong focus is placed on noise, vibration and harshness (NVH) to improve the customer' s driving experience. Parasitic effects like torque pulsations and acoustic vibration in interior permanent-magnet synchronous machines (IPMSM) are usually reduced by step-skewing of the rotor. However, this approach results in a lower output torque due to the reduction in fundamental harmonic flux linkage between the rotor field and the stator winding. Additionally, the cost of the machine is increased by the more complex and time-consuming manufacturing process.In this paper, the influence of sinusoidal cavities on the performance of V-shaped buried-magnet topologies is investigated. This modification of the rotor influences the flux density distribution in the air gap and thus the amplitudes of the spatial harmonics. Since torque pulsations and the radial forces are directly correlated to the air-gap field, the acoustic behavior will be affected. As the cavities can be integrated into the punching process for the rotor laminations, this offers a cost-efficient approach for reducing the unwanted parasitic effects in the machine. To identify a favorable design, a parameter study is carried out and the air-gap flux density distribution of the rotor field is evaluated. The torque behavior and the acoustic noise emissions of the machine with sinusoidal cavities are compared to the unskewed and the step-skewed reference machines.
Keywords
- automotive, flux barrier, NVH, permanent-magnet synchronous machine (PMSM), torque ripple, Traction
ASJC Scopus subject areas
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Control and Systems Engineering
- Engineering(all)
- Electrical and Electronic Engineering
- Engineering(all)
- Mechanical Engineering
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2022 International Conference on Electrical Machines and Systems, ICEMS 2022. Institute of Electrical and Electronics Engineers Inc., 2022.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Reduction of Torque Ripple and Vibration of Permanent Magnet Synchronous Machines with Sinusoidal Cavities
AU - England, Marc
AU - Helmer, Rainer
AU - Ponick, Bernd
PY - 2022
Y1 - 2022
N2 - In the design process of electrical machines for traction applications, a strong focus is placed on noise, vibration and harshness (NVH) to improve the customer' s driving experience. Parasitic effects like torque pulsations and acoustic vibration in interior permanent-magnet synchronous machines (IPMSM) are usually reduced by step-skewing of the rotor. However, this approach results in a lower output torque due to the reduction in fundamental harmonic flux linkage between the rotor field and the stator winding. Additionally, the cost of the machine is increased by the more complex and time-consuming manufacturing process.In this paper, the influence of sinusoidal cavities on the performance of V-shaped buried-magnet topologies is investigated. This modification of the rotor influences the flux density distribution in the air gap and thus the amplitudes of the spatial harmonics. Since torque pulsations and the radial forces are directly correlated to the air-gap field, the acoustic behavior will be affected. As the cavities can be integrated into the punching process for the rotor laminations, this offers a cost-efficient approach for reducing the unwanted parasitic effects in the machine. To identify a favorable design, a parameter study is carried out and the air-gap flux density distribution of the rotor field is evaluated. The torque behavior and the acoustic noise emissions of the machine with sinusoidal cavities are compared to the unskewed and the step-skewed reference machines.
AB - In the design process of electrical machines for traction applications, a strong focus is placed on noise, vibration and harshness (NVH) to improve the customer' s driving experience. Parasitic effects like torque pulsations and acoustic vibration in interior permanent-magnet synchronous machines (IPMSM) are usually reduced by step-skewing of the rotor. However, this approach results in a lower output torque due to the reduction in fundamental harmonic flux linkage between the rotor field and the stator winding. Additionally, the cost of the machine is increased by the more complex and time-consuming manufacturing process.In this paper, the influence of sinusoidal cavities on the performance of V-shaped buried-magnet topologies is investigated. This modification of the rotor influences the flux density distribution in the air gap and thus the amplitudes of the spatial harmonics. Since torque pulsations and the radial forces are directly correlated to the air-gap field, the acoustic behavior will be affected. As the cavities can be integrated into the punching process for the rotor laminations, this offers a cost-efficient approach for reducing the unwanted parasitic effects in the machine. To identify a favorable design, a parameter study is carried out and the air-gap flux density distribution of the rotor field is evaluated. The torque behavior and the acoustic noise emissions of the machine with sinusoidal cavities are compared to the unskewed and the step-skewed reference machines.
KW - automotive
KW - flux barrier
KW - NVH
KW - permanent-magnet synchronous machine (PMSM)
KW - torque ripple
KW - Traction
UR - http://www.scopus.com/inward/record.url?scp=85146360889&partnerID=8YFLogxK
U2 - 10.1109/ICEMS56177.2022.9983371
DO - 10.1109/ICEMS56177.2022.9983371
M3 - Conference contribution
AN - SCOPUS:85146360889
SN - 9781665493031
BT - 2022 International Conference on Electrical Machines and Systems, ICEMS 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 25th International Conference on Electrical Machines and Systems, ICEMS 2022
Y2 - 29 November 2022 through 2 December 2022
ER -