Abstract
In order to estimate the vibration and acoustic noise in a permanent magnet (PM) synchronous motor, the natural frequencies of the stator structure should be determined during the design stage. In this paper, analytical formulas to predict the natural frequencies of the stator are derived. The analytical model of the stator includes stator teeth, winding, stator core, and stator case. It is observed that the natural frequencies calculated with the integrated components exceed those based on the stator core alone only. In order to verify this analytical model, numerical simulation and experimental measurement are carried out using a PM synchronous motor which has 5 pole-pairs and 12 slots structure configuration. Good agreements are observed among the results obtained by analytical formula, simulation and experiment.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Bouzek L(2011) Natural frequency of stator core of asynchronous machine. In: 14th International Symposium Mechatronica, 13–15
De Silva CW (2005) Vibration and Shock Handbook. Taylor & Francis Group, UK
Ishibashi F, Kamimoto K, Hayashi T, Noda S, ltomi K (2003) Natural frequency of stator core of small induction. IEE Proc Electr Power Appl 150(2):210–214
Polmear IJ (1995) Light alloys: metallurgy of the light metals, 3rd edn. Butterworth-Heinemann
Salon SJ (1990) Finite element analysis of electric machinery. IEEE Comput Appl Power 3(2):29–32
Selection Election of Electrical Steels (2007) http://www.aksteel.com/pdf/markets_products/electrical/Mag_Cores_Data_Bulletin.pdf
Watanabe S, Kenjo S, Ide K, Sato F, Yamamoto M (1983) Natural frequencies and vibration behavior of motor stators. IEEE Trans PAS-102 4:949–956
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Yu, Y., Bi, C., Jiang, Q. et al. Prediction of vibration in PM synchronous motor based on calculation of stator natural frequency. Microsyst Technol 21, 2803–2810 (2015). https://doi.org/10.1007/s00542-015-2589-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00542-015-2589-1