Theoretical calculation method of decoupling E-field and thermal field of UHVDC converter bushing and its current carrying capacity simulation

Shiling Zhang; Song Wei

doi:10.1117/12.2653917

20 October 2022 Theoretical calculation method of decoupling E-field and thermal field of UHVDC converter bushing and its current carrying capacity simulation

Shiling Zhang, Song Wei

Author Affiliations +

Proceedings Volume 12350, 6th International Workshop on Advanced Algorithms and Control Engineering (IWAACE 2022); 123500T (2022) https://doi.org/10.1117/12.2653917
Event: 6th International Workshop on Advanced Algorithms and Control Engineering (IWAACE 2022), 2022, Qingdao, China

Abstract

In this paper, for the core material of the UHVDC converter bushing, its electrical performance parameters and thermal performance parameters are coupled and correlated with each other. How to take into account the interaction between them, the quantitative relationship between the temperature distribution of casing core and the electric field distribution with the current carrying capacity is obtained through the analytical theoretical formula: under the current carrying capacity of 3kA, 4kA and 5kA respectively, radial electric field distribution of casing core has the reversal effect. By changing the structural size of the bushing core, the characteristics of internal unequal temperature and equal radial electric field distribution can be realized. The proposed electro-thermal coupling theory, finite element model, electro-thermal decoupling calculation method and core optimization design process can provide reference for the development of high voltage dry direct current bushing.

Citation Download Citation

Shiling Zhang and Song Wei "Theoretical calculation method of decoupling E-field and thermal field of UHVDC converter bushing and its current carrying capacity simulation", Proc. SPIE 12350, 6th International Workshop on Advanced Algorithms and Control Engineering (IWAACE 2022), 123500T (20 October 2022); https://doi.org/10.1117/12.2653917

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