Analytical derivation of transient and steady state process of electro-thermal model considering temperature non-linearity of SF6 gas insulated structural material

Shiling Zhang; Junchen Liu

doi:10.1117/12.2635983

5 May 2022 Analytical derivation of transient and steady state process of electro-thermal model considering temperature non-linearity of SF6 gas insulated structural material

Shiling Zhang, Junchen Liu

Author Affiliations +

Proceedings Volume 12245, International Conference on Cryptography, Network Security, and Communication Technology (CNSCT 2022); 122450R (2022) https://doi.org/10.1117/12.2635983
Event: International Conference on Cryptography, Network Security, and Communication Technology (CNSCT 2022), 2022, Sanya, China

Abstract

The typical structure of SF6 gas insulation is cylindrical. The research on the performance of its typical insulation structure has a good guiding significance for the design and optimization of insulation structure. In this paper, the electro-thermal model considering the temperature non-linearity of SF6 gas insulation structure and its thermal stability are analyzed in detail. Including the nonlinear relationship between material parameters and temperature of high voltage insulation structure. Analytical calculation of current distribution in the tubular conductor. Analysis of transient temperature distribution of cylindrical insulation structure. Analysis of thermal stability and analysis of current carrying capacity of cylindrical insulation structure. This paper mainly deals with the test and numerical fitting analysis of the nonlinear relationship of the performance parameters of insulation materials, as well as the formula deduction process in the theoretical level, and analyses the relationship between the electric field and the thermal field more deeply, and provides a certain theoretical basis and guidance for the insulation structure design and the accident analysis in the power system.

Citation Download Citation

Shiling Zhang and Junchen Liu "Analytical derivation of transient and steady state process of electro-thermal model considering temperature non-linearity of SF6 gas insulated structural material", Proc. SPIE 12245, International Conference on Cryptography, Network Security, and Communication Technology (CNSCT 2022), 122450R (5 May 2022); https://doi.org/10.1117/12.2635983

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