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Numerical Study of Vibration Characteristics for Sensor Membrane in Transformer Oil

Author

Listed:
  • Wenrong Si

    (State Grid Shanghai Electrical Power Research Institute, Shanghai 200437, China)

  • Weiqiang Yao

    (State Grid Shanghai Electrical Power Research Institute, Shanghai 200437, China)

  • Hong Guan

    (State Grid Shanghai Electrical Power Research Institute, Shanghai 200437, China)

  • Chenzhao Fu

    (State Grid Shanghai Electrical Power Research Institute, Shanghai 200437, China)

  • Yiting Yu

    (MOE Key Laboratory of Micro/Nano Systems for Aerospace, Northwestern Polytechnical University, Xi’an 710072, China)

  • Shiwei Su

    (MOE Key Laboratory of Thermo-Fluid Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

  • Jian Yang

    (MOE Key Laboratory of Thermo-Fluid Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

Abstract

Membrane is the most important element of extrinsic Fabry-Perot interferometer sensors. Studying the relationship between working medium viscosity and membrane vibration characteristics are critical to the sensor design because the transformer oil viscosity will cause viscous loss during membrane vibration. The numerical investigation of membrane vibration characteristics in transformer oil is performed based on the finite element method. Besides, the effect of energy loss caused by viscosity is examined. It is firstly showed that the membrane has the highest sensitivity for the first-order vibration mode, and the transformer oil reduces the fundamental frequency by 60%. Subsequently, when viscosity and heat loss are considered, the amplitude is less than one-fifth of that without energy loss. The viscosity has a more significant effect on the velocity and temperature fields when the vibration frequency is close to the natural frequency. Finally, viscosity has a remarkable impact on the time domain response. Mechanical energy is converted into thermal energy during the vibration and the amplitude will gradually decrease with time. The effect of energy loss caused by viscosity on the membrane vibration characteristics is revealed, which would be important for an oil-immersed membrane design.

Suggested Citation

  • Wenrong Si & Weiqiang Yao & Hong Guan & Chenzhao Fu & Yiting Yu & Shiwei Su & Jian Yang, 2021. "Numerical Study of Vibration Characteristics for Sensor Membrane in Transformer Oil," Energies, MDPI, vol. 14(6), pages 1-18, March.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:6:p:1662-:d:518886
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    References listed on IDEAS

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    1. Ana C. N. Pardauil & Thiago P. Nascimento & Marcelo R. S. Siqueira & Ubiratan H. Bezerra & Werbeston D. Oliveira, 2020. "Combined Approach Using Clustering-Random Forest to Evaluate Partial Discharge Patterns in Hydro Generators," Energies, MDPI, vol. 13(22), pages 1-18, November.
    2. Franciszek Witos & Aneta Olszewska & Zbigniew Opilski & Agnieszka Lisowska-Lis & Grzegorz Szerszeń, 2020. "Application of Acoustic Emission and Thermal Imaging to Test Oil Power Transformers," Energies, MDPI, vol. 13(22), pages 1-20, November.
    3. Tinghao Yan & Chuanbo Ren & Jilei Zhou & Sujuan Shao, 2020. "The Study on Vibration Reduction of Nonlinear Time-Delay Dynamic Absorber under External Excitation," Mathematical Problems in Engineering, Hindawi, vol. 2020, pages 1-11, March.
    4. Maciej Zdanowski, 2020. "Streaming Electrification Phenomenon of Electrical Insulating Oils for Power Transformers," Energies, MDPI, vol. 13(12), pages 1-12, June.
    Full references (including those not matched with items on IDEAS)

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