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Volume 14
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10.3390/en14175507
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Article

Research on Mechanical Defect Detection and Diagnosis Method for GIS Equipment Based on Vibration Signal †

by
Liang He
1,
Jie Yang
2,*,
Ziwei Zhang
1,
Zongwu Li
3,
Dengwei Ding
1,
Minghu Yuan
1,
Rong Li
1 and
Mao Chen
1
1
Tsinghua Sichuan Energy Internet Research Institute, Chengdu 610312, China
2
Chengdu Aeronautic Polytechnic, Chengdu 610100, China
3
State Grid Sichuan Maintenance Company, Chengdu 610041, China
*
Author to whom correspondence should be addressed.
†
This paper is an extended version of our paper published in International Conference on High Voltage Engineering and Application 2020, Beijing, China, 6–10 September 2020.
Energies 2021, 14(17), 5507; https://doi.org/10.3390/en14175507
Submission received: 21 June 2021 / Revised: 24 August 2021 / Accepted: 31 August 2021 / Published: 3 September 2021
(This article belongs to the Special Issue Selected Papers from 2020 IEEE International Conference on High Voltage Engineering (ICHVE 2020))
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Abstract

Gas insulated switchgear equipment (GIS) is widely used in power system, and more attention has been paid to discharge defects than mechanical defects. However, since mechanical defects are a major cause of the failure in GIS, it is of great significance to carry out relevant research on mechanical defects. Detection and diagnosis methods of mechanical defects based on vibration signal are studied in this paper. Firstly, vibration mechanisms of GIS are analyzed. Due to structural differences between single phase insulated type GIS and three phase insulated type GIS, there are big differences in vibration mechanisms between the two types of GISs. Secondly, experimental research on mechanical defects is carried out based on a 110 kV GIS equipment and a self-developed vibration detection system; results show that mechanical defects can be diagnosed by analyzing signal amplitude, frequency spectrum and waveform distortion rate, and a large current is more beneficial for diagnosing mechanical defects. Lastly, field application has been carried out on 220 kV GIS equipment, and a poor contact defect is found, demonstrating that abnormal diagnosis can be realized by method proposed in this paper. Experimental research and field application demonstrate the feasibility and effectiveness of detection and diagnosis method for mechanical defects based on vibration signal and provide experience for subsequent engineering application.
Keywords: gas insulated switchgear; mechanical defect; vibration; detection and diagnosis gas insulated switchgear; mechanical defect; vibration; detection and diagnosis

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MDPI and ACS Style

He, L.; Yang, J.; Zhang, Z.; Li, Z.; Ding, D.; Yuan, M.; Li, R.; Chen, M. Research on Mechanical Defect Detection and Diagnosis Method for GIS Equipment Based on Vibration Signal. Energies 2021, 14, 5507. https://doi.org/10.3390/en14175507

AMA Style

He L, Yang J, Zhang Z, Li Z, Ding D, Yuan M, Li R, Chen M. Research on Mechanical Defect Detection and Diagnosis Method for GIS Equipment Based on Vibration Signal. Energies. 2021; 14(17):5507. https://doi.org/10.3390/en14175507

Chicago/Turabian Style

He, Liang, Jie Yang, Ziwei Zhang, Zongwu Li, Dengwei Ding, Minghu Yuan, Rong Li, and Mao Chen. 2021. "Research on Mechanical Defect Detection and Diagnosis Method for GIS Equipment Based on Vibration Signal" Energies 14, no. 17: 5507. https://doi.org/10.3390/en14175507

APA Style

He, L., Yang, J., Zhang, Z., Li, Z., Ding, D., Yuan, M., Li, R., & Chen, M. (2021). Research on Mechanical Defect Detection and Diagnosis Method for GIS Equipment Based on Vibration Signal. Energies, 14(17), 5507. https://doi.org/10.3390/en14175507

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