Liuhuo Wang¹, Qingcui Liu², Wenwei Zhu³, Yanru Wang⁴, Yi Tian^4,*, Long Zhao⁴

Energy Engineering, Vol.120, No.11, pp. 2651-2666, 2023, DOI:10.32604/ee.2023.027791

Abstract The electromagnetic losses of submarine cables are mainly caused by the metal shielding layer to prevent the water tree effect and the armor layer that strengthens the strength of the submarine cables. While these losses cause the temperature of submarine cable to rise, and temperature variation will in turn change the conductivity of its metal layer material. In this paper, the electric-magnetic-thermal multi-physical field coupling of the electromagnetic loss variation of the submarine cable is realized by establishing a full coupling system containing Fourier’s law and Maxwell-Ampère’s Law for the photoelectric composite submarine cable. The multi-physical field coupling model is… More > Graphic Abstract

Jun Zhang¹, Xiaobin Li¹, Long Zhao^2,*, Zixin Li¹, Shuo Wang¹, Pan Yao¹, Pengfei Dai²

Energy Engineering, Vol.120, No.3, pp. 617-631, 2023, DOI:10.32604/ee.2022.024855

Abstract In this paper, the research on ACSR temperature of broken strand and fatigue damage after broken strand is carried out. Conduct modeling and Analysis on the conductor through Ansoft Maxwell software. The distribution of magnetic force lines in the cross section of the conductor after strand breaking and the temperature change law of the conductor with the number of broken strands are analyzed. A model based on electromagnetic theory is established to analyze the distribution of magnetic lines of force in the cross section of the conductor after strand breaking and the temperature variation law of the conductor with the… More >