Power loss analysis and cooling design of flat wire motor winding for vehicle electrical motor

CHEN Lin; YAN Yecui

doi:10.12299/jsues.22-0269

Volume 37 Issue 2

Jun. 2023

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Article Navigation > Journal of Shanghai University of Engineering Science > 2023 > 37(2): 155-163

CHEN Lin, YAN Yecui. Power loss analysis and cooling design of flat wire motor winding for vehicle electrical motor[J]. Journal of Shanghai University of Engineering Science, 2023, 37(2): 155-163. doi: 10.12299/jsues.22-0269

Citation:

CHEN Lin, YAN Yecui. Power loss analysis and cooling design of flat wire motor winding for vehicle electrical motor[J]. Journal of Shanghai University of Engineering Science, 2023, 37(2): 155-163. doi: 10.12299/jsues.22-0269

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Power loss analysis and cooling design of flat wire motor winding for vehicle electrical motor

doi: 10.12299/jsues.22-0269

CHEN Lin,
YAN Yecui^,

School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China

Received Date: 2022-09-07
Publish Date: 2023-06-20

Abstract

Abstract

The flat wire motor for Electric Vehicles have the characteristics of small size, light weight and high power density. However, with the development of high-speed motor, the AC loss of flat wire motor becomes larger, and its thermal rise performance is different from the traditional circular wire motor, so it is necessary to design a cooling method suitable for it. Firstly, a two-dimensional finite element model of a high speed flat permanent magnet synchronous motor for new energy vehicles was established, the influences of the size, layer number and parallel branches number of the flat conductor on the AC loss of the motor under the driving cycle of WLTC-3 were analyzed, and the optimal conductor size and winding connection mode were obtained. Then on the basis of loss analysis, according to the temperature field distribution of the motor, the optimal cooling method of oil cooling has been designed, which reduces the temperature rise and improves the reliability of the motor operation.
- flat wire motor,
- AC loss,
- loss analysis,
- cooling method

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References(15)

References

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