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首页> 外文期刊>Mechanical systems and signal processing >A PLL-based resampling technique for vibration analysis in variable-speed wind turbines with PMSG: A bearing fault case
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A PLL-based resampling technique for vibration analysis in variable-speed wind turbines with PMSG: A bearing fault case

机译：基于PLL的重采样技术在带有PMSG的变速风力涡轮机中进行振动分析：轴承故障案例

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摘要

Condition monitoring in permanent magnet synchronous machines has gained interest due to the increasing use in applications such as electric traction and power generation. Particularly in wind power generation, non-invasive condition monitoring techniques are of great importance. Usually, in such applications the access to the generator is complex and costly, while unexpected breakdowns results in high repair costs. This paper presents a technique which allows using vibration analysis for bearing fault detection in permanent magnet synchronous generators used in wind turbines. Given that in wind power applications the generator rotational speed may vary during normal operation, it is necessary to use special sampling techniques to apply spectral analysis of mechanical vibrations. In this work, a resampling technique based on order tracking without measuring the rotor position is proposed. To synchronize sampling with rotor position, an estimation of the rotor position obtained from the angle of the voltage vector is proposed. This angle is obtained from a phase-locked loop synchronized with the generator voltages. The proposed strategy is validated by laboratory experimental results obtained from a permanent magnet synchronous generator. Results with single point defects in the outer race of a bearing under variable speed and load conditions are presented.
机译：由于越来越多地在诸如电力牵引和发电等应用中使用，永磁同步电机中的状态监控引起了人们的兴趣。特别是在风力发电中，无创状态监测技术非常重要。通常，在这样的应用中，接近发电机是复杂且昂贵的，而意外故障会导致高昂的维修成本。本文提出了一种技术，该技术可将振动分析用于风力涡轮机用永磁同步发电机的轴承故障检测。考虑到在风力发电应用中，发电机转速在正常运行期间可能会发生变化，因此有必要使用特殊的采样技术来对机械振动进行频谱分析。在这项工作中，提出了一种基于顺序跟踪而不测量转子位置的重采样技术。为了使采样与转子位置同步，提出了从电压矢量的角度获得的转子位置的估计。该角度是从与发电机电压同步的锁相环获得的。从永磁同步发电机获得的实验室实验结果验证了所提出的策略。给出了在变速和负载条件下轴承外圈出现单点缺陷的结果。

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  • 来源
    《Mechanical systems and signal processing》 |2017年第2期|354-366|共13页
  • 作者

    Carlos M. Pezzani; Jose M. Bossio; Ariel M. Castellino; Guillermo R. Bossio; Cristian H. De Angelo;

  • 作者单位

    Universidad Nacional de Rio Cuarto, Fac. Ingenieria, Ruta Nacional #36, Km 601, Rio Cuarto, Cordoba, Argentina,Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Ruta Nacional #36, Km 601, Rio Cuarto, Cordoba, Argentina;

    Universidad Nacional de Rio Cuarto, Fac. Ingenieria, Ruta Nacional #36, Km 601, Rio Cuarto, Cordoba, Argentina,Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Ruta Nacional #36, Km 601, Rio Cuarto, Cordoba, Argentina;

    Universidad Nacional de Rio Cuarto, Fac. Ingenieria, Ruta Nacional #36, Km 601, Rio Cuarto, Cordoba, Argentina;

    Universidad Nacional de Rio Cuarto, Fac. Ingenieria, Ruta Nacional #36, Km 601, Rio Cuarto, Cordoba, Argentina,Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Ruta Nacional #36, Km 601, Rio Cuarto, Cordoba, Argentina;

    Universidad Nacional de Rio Cuarto, Fac. Ingenieria, Ruta Nacional #36, Km 601, Rio Cuarto, Cordoba, Argentina,Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Ruta Nacional #36, Km 601, Rio Cuarto, Cordoba, Argentina;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Bearing fault; Vibrations analysis; Resampling; Order tracking; Phased locked loop; Wind turbine PMSG;

    机译：轴承故障;振动分析;重采样;订单跟踪;锁相环风力发电机PMSG;

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