Design analysis and optimization of permanent magnet synchronous motor for electric vehicle

Guang-wei Yu; You-jun Pan

doi:10.1117/12.2619324

29 November 2021 Design analysis and optimization of permanent magnet synchronous motor for electric vehicle

Guang-wei Yu, You-jun Pan

Proceedings Volume 12080, 4th International Symposium on Power Electronics and Control Engineering (ISPECE 2021); 120803J (2021) https://doi.org/10.1117/12.2619324
Event: 4th International Symposium on Power Electronics and Control Engineering (ISPECE 2021), 2021, Nanchang, China

Abstract

As the core parts of the drive system of electric vehicles, the electromagnetic and temperature rise properties of the drive motor greatly affect the stability of the motor operation. According to the actual working conditions of electric vehicles, a permanent magnet synchronous motor with continuous power of 35kW and rated speed of 3500r/min was designed. Based on finite element analysis and equivalent thermal network method, the model was simulated and analyzed by using motor CAD software. Through comparative experiments, the influence of each structural parameter change on the operation performance of the motor was studied. The motor efficiency increases from 94.57% to 95.34% in the comprehensive design optimization scheme. The torque ripple decreases from 18.6N·m to 5.3N·m, which decreases by 71.5%. The total loss decreases from 2081W to 1750W, with a decrease of 15.9%.The stability of motor operation is improved.

Citation Download Citation

Guang-wei Yu and You-jun Pan "Design analysis and optimization of permanent magnet synchronous motor for electric vehicle", Proc. SPIE 12080, 4th International Symposium on Power Electronics and Control Engineering (ISPECE 2021), 120803J (29 November 2021); https://doi.org/10.1117/12.2619324

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