Abstract
To obtain the decomposition characteristics of SF6 under different types of negative DC partial discharge, and then establish a fault diagnosis method based on decomposition component analysis, the author extracts four typical defects that may appear in SF6 gas-insulated electrical equipment, and obtains the decomposition characteristics caused by the four kinds of defects under negative DC. The differences of SF6 characteristic decomposition component concentration and concentration ratio in the four cases are analysed, and the results show that the SF6 gas will decompose under the negative DC-PD caused by the four defects and generate five stable decomposed components that are CF4, CO2, SO2F2, SOF2, and SO2. The concentration and concentration ratio of five gas both change with its specific regulation. Spectral Clustering algorithm is used to identify and diagnose the two feature quantities, which shows that the two types of characteristic parameters can effectively reflect the PD type, and the concentration ratio performs better.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Zhang, X., Yao, Y., Tang, J., et al.: Actual and perspective of proximate of SF6 decomposed products under partial discharge. High Volt. Eng. 34(4), 664–669 (2008)
Chu, F.Y.: SF6 decomposition in gas-insulated equipment. IEEE Trans Electr. Insul. 21(5), 693–725 (1986)
Ji, S., Zhong, L., Liu, K., et al.: Research status and development of SF6 decomposition components analysis under discharge and its application. Proc. CSEE 35(9), 2318–2332 (2015)
Tang, J., Yang, D., Zeng, F., Zhang, X.: Research status of SF6 insulation equipment fault diagnosis method and technology based on decomposed components analysis. Trans. China Electrotech. Soc. 31(20), 41–54 (2016)
Tang, J., Liang, X., Yao, Q., et al.: Influence of oxygen and moisture on feature concentration ratios of SF6 decomposition products under partial discharge. Proc. CSEE 32(31), 78–84 (2012)
Liu, Y., Wu, L., Gong, Y.: Investigation on SF6 decomposition products in GIS and affecting factors. Power Syst. Technol. 33(31), 58–61 (2009)
Tang, J., Li, T., Hu, Z., et al.: Analysis of SF6 gaseous decomposition components under two kinds of PD defects. High Volt. Eng. 35(3), 487–492 (2009)
Tang, J., Chen, C., Liu, F., et al.: Detection of constituents from SF6 decomposition under partial discharge and recognition of insulation defect coding. Power Syst. Technol. 35(1), 110–116 (2011)
Qi, B., Li, C., Luo, L., et al.: Experiment on the correlation between partial discharge and gas decomposition products in GIS. High Volt. Eng. 36(8), 957–963 (2010)
Tang, J., Liu, F., Zhang, X., et al.: Partial discharge recognition through an analysis of SF6 decomposition products part 1: decomposition characteristics of SF6 under four different partial discharges. IEEE Trans. Dielectr. Electr. Insul. 19(1), 29–36 (2012)
Tang, J., Liu, F., Meng, Q., et al.: Partial discharge recognition through an analysis of SF6 decomposition products part 2: feature extraction and decision tree-based pattern recognition. IEEE Trans. Dielectr. Electr. Insul. 19(1), 37–44 (2012)
Tang, J., Hu, Y., Yao, Q., et al.: Decomposition characteristics of SF6 under partial discharge at different gas pressures. High Volt. Eng. 40(8), 2257–2263 (2014)
Qiu, Y., Tang, J., Fan, M., et al.: Photoacoustic spectroscopy detection of SOF2 characteristic component engendered in SF6 de-composition under partial discharge. High Voltage Engineering 39(5), 1163–1169 (2013)
Van Brunt, R.J., Herron, J.T.: Plasma chemical model for decomposition of SF6 in a negative glow corona discharge. Phys. Scripta 53(2), 9–29 (1994)
Van Brunt, R.J., Herron, J.T.: Fundamental processes of SF6 decomposition and oxidation in glow and corona discharges. IEEE Trans. Electr. Insul. 25(1), 75–94 (1990)
Acknowledgments
This work is partially supported by the by national natural science foundation of China (51607127).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer Nature Switzerland AG
About this paper
Cite this paper
Zhang, M., Miao, Y., Yao, Q., Zeng, F., Tang, J. (2020). Decomposition Characteristics of SF6 and Component Features Extraction Under Negative DC Partial Discharge. In: Németh, B. (eds) Proceedings of the 21st International Symposium on High Voltage Engineering. ISH 2019. Lecture Notes in Electrical Engineering, vol 598. Springer, Cham. https://doi.org/10.1007/978-3-030-31676-1_38
Download citation
DOI: https://doi.org/10.1007/978-3-030-31676-1_38
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-31675-4
Online ISBN: 978-3-030-31676-1
eBook Packages: EngineeringEngineering (R0)