Skip to content

Frequency signature of magnetic excitations and impact of manufacturing tolerances

This technical bibliography comes from EOMYS technical training on the frequency signature of magnetic noise and vibrations in electric drives. It is regularly updated based on EOMYS consulting experience in the assessment and control of e-NVH in electrical machines and drives.

Predicting magnetic noise and vibration problems in early design stage requires the understanding of electromagnetic excitations shape and frequencies. This frequency signature is influenced by the electrical machine topology and slot/pole combination, by the load and by mechanical / magnetic tolerances. It is also helpful to distinguish in measurements NVH problems due to magnetic forces from NVH problems due to mechanical or aerodynamic excitations. The frequency signature of magnetic excitations can be analyzed in depth using Manatee software.

For more information on EOMYS technical training offer, please visit www.training.eomys.com

 

[C1] S. E. Skaar, Ø. Krøvel, and R. Nilssen, “Distribution , coil-span and winding factors for PM machines with concentrated windings.”

[C2] Roytgarts, ELECTROMAGNETIC FORCES IN INDUCTION MOTOR WITH NONSINUSOIDAL POWER SUPPLY

[C3] H. Guldemir, “Illustration of rotor pole aliasing effect in induction motor line current spectrum”

[C4] J. Le Besnerais, “Vibroacoustic analysis of radial and tangential magnetic forces in permanent magnet synchronous machines”,  2014

[C5] TRAXLER-SAMEK (G.), LUGAND (T.), et UEMORI (M.), « Vibrational Forces in Salient Pole Synchronous Machines Considering Tooth Ripple Effects », IEEE Trans. on Ind. Elec, Vol 59, No 5, mai 2012

[C6] P. Pellerey, V. Lanfranchi, G. Friedrich, “Simulations and Validations of Rotor Dynamic Eccentricity Effects on Synchronous Machine Vibrations During a Full Run Up,”IEEE Trans. on Ind. Elec

[C7] M. Boesing, M. Niessen, T. Lange, and R. De Doncker, “Modeling spatial harmonics and switching frequencies in PM synchronous machines and their electromagnetic forces,” 2012 XXth Int. Conf. Electr. Mach., pp. 3001–3007, Sep. 2012.

[C8] Z. Q. Zhu, Z. Azar, and G. Ombach, “Influence of Additional Air Gaps Between Stator Segments on Cogging Torque of Permanent-Magnet Machines Having Modular Stators,” vol. 48, no. 6, pp. 2049–2055, 2012.

[C9] H. Yang and Y. Chen, “Influence of Radial Force Harmonics With Low Mode Number on Electromagnetic Vibration of PMSM,” IEEE Trans on Energy Conversion, 2014.

[C10] Modeling and control of radial forces due to electromagnetic force in IPMSMs, M. Kanematsu et al, EVTeC, 2014

[C11] Tao Sun; Ji-Min Kim; Geun-Ho Lee; Jung-Pyo Hong; Myung-Ryul Choi, “Effect of Pole and Slot Combination on Noise and Vibration in Permanent Magnet Synchronous Motor,” Magnetics, IEEE Transactions on , vol.47, no.5, pp.1038,1041, May 2011

[C12] S. Nandi, S. Ahmed, S. Member, H. A. Toliyat, and S. Member, “Detection of Rotor Slot and Other Eccentricity Related Harmonics in a Three Phase Induction Motor with Different Rotor Cages,” vol. 16, no. 3, pp. 253–260, 2001.

[C13] S. Nandi, “Slot permeance effects on rotor.”

[C14] G. Joksimovic, et al. « Stator line current spectrum content of a heathy cage rotor induction machine », IEEE 2011

[C15] Spectrum of induction machine stator currents, affected by clutch wobbling and mixed eccentricity, Saled S Hamad Elawgali, 2009

[C16] M. Valavi, A. Nysveen, R. Nilssen, and T. Rolvag, “Slot Harmonic Effect on Magnetic Forces and Vibration in Low-Speed Permanent Magnet Machine with Concentrated Windings,” IEEE Trans. Ind. Appl., vol. 9994, no. c, pp. 1–1, 2014.

[C17] Cameron, J.R.; Thomson, W.T.; Dow, A.B., “Vibration and current monitoring for detecting airgap eccentricity in large induction motors,” in Electric Power Applications, IEE Proceedings B , vol.133, no.3, pp.155-163, May 1986

[C18] Ebrahimi, B.M.; Faiz, J.; Roshtkhari, M.J., “Static-, Dynamic-, and Mixed-Eccentricity Fault Diagnoses in Permanent-Magnet Synchronous Motors,” in Industrial Electronics, IEEE Transactions on , vol.56, no.11, pp.4727-4739, Nov. 2009

[C19] Tsoumas, I.P.; Tischmacher, H.; Eichinger, B., “Influence of the number of pole pairs on the audible noise of inverter-fed induction motors: Radial force waves and mechanical resonances,” in Electrical Machines (ICEM), 2014 International Conference on , vol., no., pp.1811-1817, 2-5 Sept. 2014

[C20] Kazumasa IKEDA et al, Mechanism of Noise Generation on Outer Rotor Motor, INTERNOISE 2014

[C21] Mohamed Yazid Kaikaa et al, ANALYTICAL ANALYSIS OF ROTOR SLOT HARMONICS IN THE LINE CURRENT OF SQUIRREL CAGE INDUCTION MOTORS, 2006

[C22] M. Thiele, G. Heins, and D. Patterson, “Identifying manufacturing induced rotor and stator misalignment in brushless permanent magnet motors .,” pp. 2728–2733, 2014

[C23] G. He, Z. Huang, R. Qin, and D. Chen, “Numerical prediction of electromagnetic vibration and noise of permanent-magnet direct current commutator motors with rotor eccentricities and glue effects,” IEEE Trans. Magn., vol. 48, no. 5 PART 2, pp. 1924–1931, 2012..

[C24] M. Boesing, “Noise and Vibration Synthesis based on Force Response Superposition,” Fakultät für Elektrotechnik und Informationstechnik der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2013.

[C26] M. Benbouzid, What Stator Current Processing Based Technique to Use for Induction Motor Rotor Faults Diagnosis?

[C27] R. Belmans, A. Vandenput and W. Geysen, “Calculation of the flux density and the unbalanced pull in two pole induction machines”, Archiv für Elektrotechnik, Vol. 70, 1987, pp. 151-161.

[C28] Mohamed Yazid Kaikaa, ANALYTICAL ANALYSIS OF ROTOR SLOT HARMONICS IN THE LINE CURRENT OF SQUIRREL CAGE INDUCTION MOTORS, Journal of ELECTRICAL ENGINEERING, VOL. 57, NO. 1, 2006, 12–19