Modified simulation of classical J-A model based on finite element simulation model of current transformer

Zhixi Wu; An Chen

doi:10.1117/12.3024265

13 May 2024 Modified simulation of classical J-A model based on finite element simulation model of current transformer

Zhixi Wu, An Chen

Proceedings Volume 13159, Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023); 131596L (2024) https://doi.org/10.1117/12.3024265
Event: Eighth International Conference on Energy System, Electricity and Power (ESEP 2023), 2023, Wuhan, China

Abstract

In order to study the transmission characteristics of Current Transformer (CT) used for measurement under the saturation operating point of iron core, the numerical model based on the classical J-A model is usually used to explore the saturation characteristics of CT. However, because the classical J-A magnetization theoretical model of Langevin function has non-material understanding, it needs to be modified. Therefore, based on the discontinuity of deflection Angle of magnetic domains in magnetic physics, the universal Brillouin function is introduced in this paper, and a new hysteretic model of iron core is formed by modifying the classical J-A magnetization theory. Combined with the modified J-A hysteresis model, a single core CT finite element simulation model is established in Ansys, and the variable current transfer under different working conditions is simulated, which verifies the feasibility of the classical J-A model for correcting the route.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Zhixi Wu and An Chen "Modified simulation of classical J-A model based on finite element simulation model of current transformer", Proc. SPIE 13159, Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023), 131596L (13 May 2024); https://doi.org/10.1117/12.3024265

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