Vibro-acoustic prediction and evaluation of permanent magnet synchronous motors

Dong, Qichao; Liu, Xintian; Qi, Hongzhong; Zhou, Yafu

doi:10.1177/0954407020919659

Cited by 21 publications

(9 citation statements)

References 22 publications

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“…Therefore, the expression of total electromagnetic torque of IPMSM considering the PM flux harmonics and the cross-coupling effect can be obtained by adding (6) and (11).…”

Section: Analytical Modeling Of Electromagnetic Torque Considering It...mentioning

confidence: 99%

“…1–3 However, affected by multi-factors, the torque of IPMSM contains a large number of harmonic components, which will arouse electromagnetic vibration and noise of the motor. 4–7 In addition, when the frequency of torque ripple moves close to the natural frequency, mechanical resonance will occur. That is detrimental to the stability of the whole electric drive system.…”

Section: Introductionmentioning

confidence: 99%

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Electromagnetic torque prediction and harmonic reduction of interior permanent magnet synchronous motor for electric vehicles using an analytical method

Zuo

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part D:

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Interior permanent magnet synchronous motors (IPMSMs) have been widely used as drive machines in electric vehicles (EVs) due to their high torque density. However, the torque ripple of IPMSMs will result in severe noise and vibration. This paper proposes a new analytical method for electromagnetic torque prediction and harmonic reduction of IPMSM. On the basis of dq theory, an analytical model of electromagnetic torque is firstly established by taking the permanent magnet flux harmonics and the cross-coupling effect into consideration. And the specific sources and orders of torque harmonics are also determined. Then, the torque-angle characteristics are further studied. In particular, the permanent magnet (PM) torque and the reluctance torque are separated and quantitatively analyzed via the proposed analytical model. Finally, a theoretical method of reducing the specific order torque harmonic by PM shifting is derived and proposed from the perspective of avoiding resonance. The accuracy and effectiveness of the proposed analytical method are verified by finite-element analysis. The results show that the proposed analytical model is accurate enough to predict the electromagnetic torque performance of IPMSM. Moreover, the electromagnetic torque harmonics with specific orders can be effectively reduced by shifting the PM to an appropriate angle.

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“…Therefore, the expression of total electromagnetic torque of IPMSM considering the PM flux harmonics and the cross-coupling effect can be obtained by adding (6) and (11).…”

Section: Analytical Modeling Of Electromagnetic Torque Considering It...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electromagnetic torque prediction and harmonic reduction of interior permanent magnet synchronous motor for electric vehicles using an analytical method

Zuo

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part D:

View full text Add to dashboard Cite

show abstract

“…Hence, the radial EM force is always considered to be the only or main cause of EM vibration and noise in permanent magnet synchronous motors (PMSMs). 7,[9][10][11][12][13][14][15][16][17] In the above literature, the effect of the tangential EM force is ignored. In particular, the result in 11 shows that the radial EM force with low spatial orders contributes most to the vibration and noise.…”

Section: Introductionmentioning

confidence: 99%

Modeling and analysis of electromagnetic force in interior permanent magnet synchronous motor used for electric vehicles

Zuo

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The accurate prediction and analysis of electromagnetic excitation source is the pre-condition for the investigation of electromagnetic vibration and noise. In this work, an analytical model for electromagnetic (EM) force calculation of interior permanent magnet synchronous motors (IPMSMs) is proposed by coupling the 2-D model in polar coordinates and the Maxwell stress tensor method (MSTM). In the modeling, the boundary conditions for solving the air-gap magnetic field are firstly simplified based on the equivalent conversion of permanent magnets (PMs). Then, the magnetic field is acquired by solving the governing equation based on the simplified boundary conditions. Finally, the EM force is obtained according to the MSTM. The effectiveness is fully verified by finite element (FE) analysis that the analytical model can be applied not only for the calculation of radial EM force of IPMSMs with/without load but also for the calculation of tangential EM force. Besides, the tangential EM force is further analyzed by 2-D Fourier decomposition, and the relationship between tangential EM force and torque fluctuation is also clarified. The results show that the radial EM force harmonics and the tangential EM force harmonics have the same spatiotemporal characteristics no matter under no-load or load. Moreover, the high-frequency components of tangential EM force harmonics with low spatial orders, which have the highest contribution to vibration and noise, are comparable to those of radial EM force harmonics. Meanwhile, the torque fluctuation of IPMSMs with/without load only comes from the zero-order tangential EM force harmonics in space.

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“…The hub motor drive electric vehicles have become research hotspots with its unique advantages. [6][7][8][9] However, the hub motor drive EV is affected by road surface 10 and motor noise 11,12 in practical application. Therefore, it is important to study the vertical dynamic characteristics of hub motor drive electric vehicle.…”

Section: Introductionmentioning

confidence: 99%

Vibration control of improved LQG for wheel drive electric vehicle based on uncertain parameters

Liu

Wang

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part D:

Self Cite

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To improve the ride comfort of wheel drive electric vehicle, a quarter dynamic model is established for vehicle active and passive suspension. Based on the response root mean square (RMS), the evaluation index of vehicle ride comfort is derived. According to the influence of uncertain parameters on system minimum RMS, the optimal vehicle parameters are determined. To avoid experience value of uncertain weight coefficient affecting the LQG control, analytic hierarchy process (AHP) is adopted to determine the weighting coefficient of vehicle performance evaluation index. And the LQG controller of vehicle active suspension is designed based on optimal control theory. Compared with the analysis results of passive suspension, the effectiveness of active control scheme is verified.

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Vibro-acoustic prediction and evaluation of permanent magnet synchronous motors

Cited by 21 publications

References 22 publications

Electromagnetic torque prediction and harmonic reduction of interior permanent magnet synchronous motor for electric vehicles using an analytical method

Electromagnetic torque prediction and harmonic reduction of interior permanent magnet synchronous motor for electric vehicles using an analytical method

Modeling and analysis of electromagnetic force in interior permanent magnet synchronous motor used for electric vehicles

Vibration control of improved LQG for wheel drive electric vehicle based on uncertain parameters

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