With the continuous increase in the number and relevance of electric transmission lines and distribution networks, there is a higher exposure to the magnetic fields generated by them, leading to more cases of human electrosensitivity, which greatly necessitates the design and development of magnetic field mitigation procedures and, at the same...
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May 2, 2019 (v1)PublicationUploaded on: March 27, 2023
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December 2, 2022 (v1)Publication
The great expansion in offshore power plants is raising the concern regarding the cumulative effect of the electromagnetic field emissions caused by submarine power cables. In this sense, owners are required to predict these emissions during the permitting and consenting process of new power plants. This is a challenging task, especially in the...
Uploaded on: March 24, 2023 -
November 27, 2014 (v1)Publication
Results are presented as obtained from the adaptation of the subject of Electrical Installations taught in the degree of Technical Industrial Engineering for the application of active teaching methods, implemented in order to tailor this subject to the new guidelines introduced by the European Higher Education Area (EHEA).
Uploaded on: March 27, 2023 -
November 19, 2020 (v1)Publication
This paper presents the main features of a 3D FEMbased modelling framework of submarine three-core power cables with the final aim of estimating the ampacity of this type of cables when operating at certain conditions (buried in the seabed in steady-state). This assessment provides valuable information for the cable manufacturer during the...
Uploaded on: December 4, 2022 -
November 19, 2020 (v1)Publication
The computation of the power losses in submarine three-core lead sheathed armored cables is overestimated by the IEC 60287 standard, and hence its size and cost. 3D finite element simulations in COMSOL Multiphysics have proved to provide accurate results in losses computation thanks to recent advances that help in reducing the model length by...
Uploaded on: December 4, 2022 -
November 27, 2014 (v1)Publication
In this paper an in-depth parametric analysis of shielding effectiveness obtained when using ferromagnetic or conductive screens to mitigate the field generated by duct banks is presented. Due to the need of a case-by-case approach, all the simulations, performed by a finite element software (GetDp), are applied to a case study composed by 9 (3...
Uploaded on: December 4, 2022 -
April 28, 2021 (v1)Publication
Loss allocation through analytical expressions in three-core lead-sheathed armored cables is challenging due to the complex geometry of this type of cable, commonly employed in submarine energy transmission systems (involving twisted conductors, sheaths and armor). Most of the expressions of the IEC standard 60287 have not been properly adapted...
Uploaded on: December 4, 2022 -
November 18, 2020 (v1)Publication
El alto coste económico de los parques eólicos offshore requiere optimizar su diseño y caracterización, como es el caso de los cables trifásicos armados de interconexión y exportación de la energía. Hasta ahora estos cables se han caracterizado en base a suposiciones erróneas derivadas de geometrías 2D que omiten el efecto del trenzado de fases...
Uploaded on: March 26, 2023 -
January 11, 2022 (v1)Publication
Due to recent advances, the numerical analysis of submarine three-core armored cables can nowadays be developed through the finite element method (FEM) in a small slice of the cable. This strongly reduces the computational burden and simulation time. However, the performance of this ultra-shortened 3D-FEM model is still to be fully assessed...
Uploaded on: December 4, 2022 -
December 21, 2023 (v1)Publication
Recently, large offshore wind power plants have been installed far from the shore, using long HVAC three-core armored cables to export power. Its high capacitance may contribute to the appearance of unwanted phenomena, such as overvoltages or resonances at low frequencies. To adequately assess these problems, detailed and reliable cable models...
Uploaded on: December 25, 2023 -
December 21, 2023 (v1)Publication
Loss allocation of the three different components (conductor, sheaths and armor) of solidly bonded three-core separated lead-sheathed armored cables, frequently employed in offshore wind farms, is challenging due to the lack of accurate enough analytical expressions in the IEC standard. Also, loss allocation through experimental tests leads to...
Uploaded on: December 25, 2023 -
April 10, 2019 (v1)Publication
This paper analyzes different ways to electromagnetically simulate three-core armored cables in 3D by means of the finite element method. Full periodic models, as lengthy as 36 m, are developed to evaluate the accuracy when simulating only a small portion of the cable, as commonly employed in the literature. The adequate length and boundary...
Uploaded on: March 25, 2023