Applying thermophysics for wind turbine drivetrain fault diagnosis using SCADA data

Qiu, Yingning and Feng, Yanhui and Sun, Juan and Zhang, Wenxiu and Infield, David (2016) Applying thermophysics for wind turbine drivetrain fault diagnosis using SCADA data. IET Renewable Power Generation. ISSN 1752-1416 (https://doi.org/10.1049/iet-rpg.2015.0160)

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Abstract

Cost-effective wind turbine diagnosis using SCADA data is a promising technology for future intelligent wind farm operation and management. This paper presents a thermophysics based method for wind turbine drivetrain fault diagnosis. A synthesized thermal model is formed by incorporating thermal mechanisms of the drivetrain into a wind turbine system model. Applications of the model are demonstrated in case studies of the gearbox and generator comparing simulation results and SCADA data analysis. The results show nonlinearity of the gearbox oil temperature rise with wind speed/output power that can effectively indicate gearbox efficiency degradation, which may be attributed to gear transmission problems such as gear teeth wear. Electrical generator faults, such as ventilation failure and winding voltage unbalance will cause changes to heat transfer and result in temperature changes that can be used for diagnosis purposes. This is shown by different patterns of stator winding temperature associated with power generation, while the simulation reveals the thermal mechanism. The method can be applied to diagnose some failure modes which are hard to identify from vibration analysis. The developed thermal model can play a central role for the purpose of fault diagnosis, by deriving relationships between various SCADA signals and revealing changes in the thermophysics of wind turbine operation.

  • Item type:Article
    ID code:55742
    Dates:
    Date
    Event
    19 January 2016
    Published
    4 December 2015
    Accepted
    Notes:This paper is a preprint of a paper accepted by IET Renewable Power Generation and is subject to Institution of Engineering and Technology Copyright. When the final version is published, the copy of record will be available at IET Digital Library.
    Subjects:UNSPECIFIED
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:03 Mar 2016 10:48
    Last modified:19 Apr 2024 00:17
    URI:https://strathprints.strath.ac.uk/id/eprint/55742
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