High Efficient Permanent Magnet Synchronous Motor Design, Electromagnetic and Noise-Vibration Analyzes

Abstract

In this study, it was aimed to carry out the design, electromagnetic analysis and noise-vibration analysis of a 3 phase, high efficient surface-mounted permanent magnet motor with a power level of 7.5kW and 1500rpm speed. Using basic analytical formulas initial design geometry of motor was obtained. This first design geometry was investigated in detail by electromagnetic analyzes. In these electromagnetic analyzes, cogging torque, torque ripple, losses and efficiency parameters have been investigated. Then, modal and harmonic analyzes were carried out in order to interpret the effect of radial harmonic forces, obtained from electromagnetic analyzes, on the stator teeth on the noise and vibration parameters of the motor. According to analysis result of initial designed motor, it was aimed to reduce cogging torque, torque ripple, efficiency, noise and vibration parameters. It is thought that the improvement studies to be perform in the cogging torque will also have a positive effect on the torque ripple and vibration on the motor. By optimizing studies performed magnet and lamination geometry, new motor geometry has been obtained. Electromagnetic, modal, harmonic analyzes were made this new motor geometry. Analysis results of the new design and the first design were studied comparatively.

Keywords

• Vibration
• Noise
• Efficiency
• Cogging Torque

References

1. [1] D. Hanselman, “Brushless Permanent Magnet Motor Design”, Second Edition, 2006. [2] Jacek. F. Gıeras, “Permanent Magnet Motor Technology”, Third Edition, 2010.
2. [3] Y. Xie, Y. Xia, Z. Li, F. Li, “Analysis of Modal and Vibration Reduction of an Interior Permanent Magnet Synchronous Motor”, Energies 12(18): 3427, September 2019.
3. [4] Y. Wang, H. Gao, H. Wang, W. Ma, “NVH Optimization Analysis of Permanent Magnet Motor by Rotor Slotting”, Vehicles 2(2): 287-303, May 2020.
4. [5] S. Sathyan, U. Aydin, A.Belachen, “Acoustic Noise Computation of Electrical Motors Using Boundary Element Method”, Energies 13(1): 245, January 2020.
5. [6] S. Paitandi, M. Sengupta, “Design, Fabrication and Parameter Evaluation of a Surface Mounted Permanent Magnet Synchronous Motor ”, IEEE International Conference on Power Electronics, Drives and Energy Systems, 2014.
6. [7] I. D. Chasiotis, Y. L. Karnavas, “A Generic Multi-Criteria Design Approach Towards High Power Density and Fault Tolerant Low Speed PMSM for Pod Application ”, IEEE Transactions on Transportation Electrification, 2019.
7. [8] M. Popescu, E. Tudor, S. Nıcolaıe, C. I. Ilıe, L. Popovici, C. Dumitru, “Experimental Results Regarding Cogging Torque Reduction for the Permanent Magnet Synchronous Motors PMSM”, The 11th Internatıonal Symposium on Advanced Topics in Electrical Engineering, 2019.
8. [9] G. Todorov, B. Stoev, G. Savov, P. Kyuchukov, “Effects of Cogging Torque Reduction Techniques Applied to Surface Mounted PMSMs with Distributed Windings”, 15th International Conference on Electrical Machines, Drives, and Power Systems, 2017.

9. [10] M. Chabchoub, I. B. Salah, G. Krebs, R. Neji, C. Marchand, “PMSM Cogging Torque Reduction: Comparison between different shapes of magnet ”, First International Conference on Renewable Energies and Vehicular Technology, 2012.