Vibration Study of Permanent Magnet Synchronous Motor Base on Static Eccentricity Model

Hu, Yusheng; Wei, Huijun; Chen, Huajie; Sun, Wei; Zhao, Suzhen; Li, Liyi

doi:10.1109/icems.2019.8922162

Cited by 9 publications

(3 citation statements)

References 11 publications

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“…Any actual situation of air-gap eccentricity is a different combination of static and dynamic eccentricity [20][21][22]. A schematic diagram of air-gap eccentricity is shown in Figure 1.…”

Section: Geometric Structure Of Air-gap Eccentricitymentioning

confidence: 99%

Static Eccentricity Fault Analysis of Surface-Mounted Permanent Magnet Electromotor with Skewed Slots Based on 2D FEA

Wang

2021

WEVJ

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It is of significance to analyze the performance of eccentric electromotor for the research on the electric vehicle wheel drive system’s operational reliabilities. We developed a fast equivalent algorithm in which the two-dimensional finite element calculation results are translated into three-dimensional calculation results. An electromotor with skewed slot was decomposed into straight-slot electromotor units that were series-wound. A prototype electromotor driven by square wave current under healthy and eccentric conditions was calculated, and the computation accuracy of the equivalent algorithm was analyzed. The air-gap magnetic field and induced electromotive force were calculated and contrasted. The study results indicate that the magnetic field distribution and the induced electromotive forces of winding elements with different axis positions were affected transparently by grievous eccentricity, yet the induced electromotive force of one phase winding and average value of torque remained virtually invariable. The reference to reliability analysis of electric vehicle wheel drive system is provided.

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“…Any actual situation of air-gap eccentricity is a different combination of static and dynamic eccentricity [20][21][22]. A schematic diagram of air-gap eccentricity is shown in Figure 1.…”

Section: Geometric Structure Of Air-gap Eccentricitymentioning

confidence: 99%

Static Eccentricity Fault Analysis of Surface-Mounted Permanent Magnet Electromotor with Skewed Slots Based on 2D FEA

Wang

2021

WEVJ

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“…It is widely known today that eccentricities in the rotor have a detrimental effect on the electromagnetic characteristics of rotating machines and significantly increase vibrations and other adverse effects [7][8][9][10]. However, there is a considerable lack of work on the effects that misalignments and eccentricities have on the operation of linear tubular machines.…”

Section: Introductionmentioning

confidence: 99%

Multi‐physics analysis of double‐sided tubular linear machine with misalignment faults

Liang

Liu

Galea

2022

IET Electric Power Appl

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Multi air-gap tubular linear machines usually take the form of a double-sided tubular linear machine (DSTLM). Such machines have a higher space utilisation and higher power density than their single air-gap counterparts, but at the same time the structure is more complex. It is traditionally very difficult to mechanically implement a movement between two slotted stators, whilst maintaining an even air gap distribution. Thermally, the inner stator is another complex aspect of a DSTLM. However, very little understanding of these two aspects and how they influence the performances of tubular machines exists today. Therefore in this paper, the aim is to accurately analyse the influence of temperature rise and eccentricity fault on the performances of DSTLM. A two-way electromagnetic-fluidthermal multi-physics coupling model of the DSTLM is established. The variations of electromagnetic, fluid and thermal characteristics with the eccentricity are systematically analysed. A physical prototype is manufactured and the analysed results are verified by the experiments.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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“…In fact many publications can be found on the effects of static and dynamic eccentricity, e.g. in [3][4][5] or [6] and the detection of a faulty machine in [7,8] or [9] due to the typical pattern of additional field harmonics that can be measured i. a. in the current or surface acceleration.…”

Section: Introductionmentioning

confidence: 99%

Archives of Electrical Engineering

Jaeger,

Drichel,

Schröder

et al. 2021

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Production deviations have a remarkable effect on the radiated sound of electrical machines, introducing additional signal components besides the fundamental field waves which significantly change and enrich the subjectively perceived sound characteristic. In literature these harmonics are mainly traced back to dynamic eccentricity, which modulates the fundamental field waves. In this paper a thorough mechanic and electromagnetic analysis of a modern, well-constructed traction drive (permanent magnet synchronous machine) is performed to show that for this typical rotor configuration dynamic eccentricity is negligible. Instead, deviations in the rotor magnetization are shown to be the dominant cause for vibration harmonics.

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Vibration Study of Permanent Magnet Synchronous Motor Base on Static Eccentricity Model

Cited by 9 publications

References 11 publications

Static Eccentricity Fault Analysis of Surface-Mounted Permanent Magnet Electromotor with Skewed Slots Based on 2D FEA

Static Eccentricity Fault Analysis of Surface-Mounted Permanent Magnet Electromotor with Skewed Slots Based on 2D FEA

Multi‐physics analysis of double‐sided tubular linear machine with misalignment faults

Archives of Electrical Engineering

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