Calculation of surface electric field distribution and corona onset voltage of stranded conductors and its field application

Shiling Zhang; Song Wei

doi:10.1117/12.2653508

20 October 2022 Calculation of surface electric field distribution and corona onset voltage of stranded conductors and its field application

Shiling Zhang, Song Wei

Author Affiliations +

Proceedings Volume 12350, 6th International Workshop on Advanced Algorithms and Control Engineering (IWAACE 2022); 123500S (2022) https://doi.org/10.1117/12.2653508
Event: 6th International Workshop on Advanced Algorithms and Control Engineering (IWAACE 2022), 2022, Qingdao, China

Abstract

Stranded conductor is widely used in the transmission line, and corona of stranded conductor is one of key problems in the operation of transmission line, so the research on the surface electric field distribution and corona onset voltage of stranded conductors provides theoretical basis in the design of transmission lines. In the paper, a calculation method of surface electric field distribution and corona onset voltage of stranded conductors using corona onset criterion and FEM was proposed. The simulation calculation results indicate the corona onset voltage increases with the increase of the overall conductor radius and the number of external strands as expected, and tends to be saturated. Besides, the relation between surface roughness coefficient and the overall conductor radius, including the number of external strands was analyzed, and the efficiency of the calculation method proposed was proved based on the informed experimental data.

Citation Download Citation

Shiling Zhang and Song Wei "Calculation of surface electric field distribution and corona onset voltage of stranded conductors and its field application", Proc. SPIE 12350, 6th International Workshop on Advanced Algorithms and Control Engineering (IWAACE 2022), 123500S (20 October 2022); https://doi.org/10.1117/12.2653508

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