Vibration Analysis of a PMSM through FEM Multiphysics Simulation with Experimental Validation

Vibratory characterization of electrical machines is an important task that should be performed early in the design stages. Treat it as an afterthought may lead to high vibration and noise levels incompatible with the application requirements.In this paper, multiphysics FEM simulation is used to model a PMSM (Permanent Magnet Synchronous Machine) from both, the magnetic and vibratory point of view.A 2D magnetic simulation is carried out to get the excitation forces over the stator. In parallel, a 3D modal simulation will reproduce an Experimental Modal Analysis (EMA), identifying machine’s vibration modes. Finally, the Maxwell forces obtained by the magnetic simulation will be used as input to run an Operation Modal Analysis (OMA) which output is the vibration levels in the machine’s housing.Magnetic, EMA and OMA simulations has been validated through prototype testing. A detailed comparison between simulation results and experiments is presented.

[1]  J. Michel,et al.  Effective properties of composite materials with periodic microstructure : a computational approach , 1999 .

[2]  Hermann Lang,et al.  Validation of a Comprehensive Analytic Noise Computation Method for Induction Machines , 2012, IEEE Transactions on Industrial Electronics.

[3]  M. Petró‐Turza,et al.  The International Organization for Standardization. , 2003 .

[4]  Fu Lin,et al.  Noise Analysis, Calculation, and Reduction of External Rotor Permanent-Magnet Synchronous Motor , 2015, IEEE Transactions on Industrial Electronics.

[5]  Joseph C. S. Lai,et al.  Noise of Polyphase Electric Motors , 2005 .

[6]  Pragasen Pillay,et al.  Impact of stator windings and end-bells on resonant frequencies and mode shapes of switched reluctance motors , 2002 .

[7]  R. González,et al.  Development of a multidisciplinary and optimized design methodology for surface permanent magnets synchronous machines , 2016 .

[8]  Iqbal Husain,et al.  Radial force calculation and acoustic noise prediction in switched reluctance machines , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[9]  Rakib Islam,et al.  Noise and vibration characteristics of permanent magnet synchronous motors using electromagnetic and structural analyses , 2011, 2011 IEEE Energy Conversion Congress and Exposition.

[10]  Antero Arkkio,et al.  End-Winding Vibrations Caused by Steady-State Magnetic Forces in an Induction Machine , 2010, IEEE Transactions on Magnetics.