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Finite Element Method Assisted Audible Noise Detection for Overhead Line Conductors Using the Cage Experiment

Author

Listed:
  • Yigui Li

    (The Xuefeng Mountain Energy Equipment Safety National Observation and Research Station of Chongqing University, Chongqing 400044, China)

  • Qi Li

    (The Xuefeng Mountain Energy Equipment Safety National Observation and Research Station of Chongqing University, Chongqing 400044, China
    Department of Electrical and Electronic Engineering, The University of Manchester, Manchester M13 9PL, UK)

  • Wei Meng

    (Electric Power Research Institute of Guangdong Power Grid Co., Ltd., Guangzhou 510080, China)

  • Qi Tang

    (Ningbo Orient Wires &Cables Co., Ltd., Ningbo 315801, China)

  • Li Li

    (Electric Power Research Institute of Guangdong Power Grid Co., Ltd., Guangzhou 510080, China)

  • Jianlin Hu

    (The Xuefeng Mountain Energy Equipment Safety National Observation and Research Station of Chongqing University, Chongqing 400044, China)

  • Xingliang Jiang

    (The Xuefeng Mountain Energy Equipment Safety National Observation and Research Station of Chongqing University, Chongqing 400044, China)

Abstract

Audible noise (AN) has been the main concern in recent years when considering electromagnetic environmental impact in designing overhead lines (OHLs). Driven by the increased demand of high voltage direct current (HVDC) transmission lines, a novel corona cage experiment is built in association with an acoustic simulation using the finite element method (FEM). The characteristics of the acoustic wave propagation within the testing hall are analyzed using FEM, and the optimized locations for AN detection are determined. On the basis of complying with measurement standards, the location of the measurement is selected to be closer to the sound source and further away from the reflecting surface, to generate more accurate measurement results. In the designated test hall for this paper, the influence of refraction and reflection of sound waves is not obvious. The attenuation of sound waves below 4 kHz is negligible, while for higher frequencies such as 4 kHz and 8 kHz it is significant. Finally, FEM simulation is used to optimize the location for measurement microphones, and further experiments are carried out to verify its accuracy.

Suggested Citation

  • Yigui Li & Qi Li & Wei Meng & Qi Tang & Li Li & Jianlin Hu & Xingliang Jiang, 2023. "Finite Element Method Assisted Audible Noise Detection for Overhead Line Conductors Using the Cage Experiment," Energies, MDPI, vol. 16(12), pages 1-15, June.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:12:p:4564-:d:1165781
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