Experimental validation of ultra-shortened 3D finite element electromagnetic modeling of three-core armored cables at power frequency

Del-Pino-López, Juan Carlos; Cruz-Romero, Pedro

doi:10.1016/j.epsr.2021.107665

Cited by 7 publications

(3 citation statements)

References 26 publications

(43 reference statements)

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“…In this sense, the ultra-shortened 3D-FEM model (USM) presented in [22] has drastically reduced these resources, with an overall simulation time of about 1 min. This USM has been faced with experimental measurements at power and harmonic frequencies, providing accurate results regarding the cable sequence impedances, the induced sheath current and total losses [23,24].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the power frequency magnetic field generated by three-core armored cables through 3D finite element simulations

Del-Pino-López

Cruz-Romero

Bravo-Rodríguez

2022

Electric Power Systems Research

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Section: Introductionmentioning

confidence: 99%

Evaluation of the power frequency magnetic field generated by three-core armored cables through 3D finite element simulations

Del-Pino-López

Cruz-Romero

Bravo-Rodríguez

2022

Electric Power Systems Research

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“…For a precise modelling of the electromagnetic effects in twisted and armoured power cables, authors in [5] and [6] claim that a 3D analysis is required. They propose a simplified 3D FEA method, in which a complete 3D model is shortened to its minimum length where the magnetic field periodicity still applies, achieving errors of below 10 % compared to a full-length model.…”

Section: Fea Methodsmentioning

confidence: 99%

Hybrid Method for Numerical Implementation of Segmented Power Cable Conductors in Finite-element Based Ampacity Calculation

Strand

Eberg

Anders

2022

NORD-IS

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This paper addresses challenges with modelling of segmented power cable conductors using finite element analysis (FEA) for ampacity calculation. Segmented conductors improve current distribution by minimizing skin and proximity effects, thus reducing conductor losses. 2D FEA simulation offers high flexibility and accuracy beyond IEC 60287 for complex laying geometries, but the modelling of losses in segmented constructions using FEA has proven difficult due to the big difference in wire size and twisting pitch, requiring great amounts of computational power. In this paper a hybrid method is proposed, in which the IEC 60287 empirical formulae for segmented conductors are included in a 2D FEA model. The proposed method shows a good correspondence to IEC standard calculations, with deviations in conductor AC resistance of less than 1 %.

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“…This model was further simplified (without loss of accuracy) in [24]- [27], reducing the simulation time below 1 minute. This ultrashortened 3D-FEM model (USM) has been exhaustively faced to experimental measurements for evaluating its performance regarding relevant aspects of TCACs at power frequency, such as the series resistance, inductive reactance, induced sheath current, and zero sequence impedance [28]. However, the extent to which the USM can be useful for the analysis of TCACs at harmonic frequencies remains to be determined.…”

Section: Introductionmentioning

confidence: 99%

Experimental Validation of Ultra-Shortened 3D Finite Element Models for Frequency-Domain Analyses of Three-Core Armored Cables

Del-Pino-López

Cruz-Romero

2022

IEEE Trans. Power Delivery

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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 are required to develop time-domain/frequency-domain analyses on this type of cables. This paper presents, for the first time in the literature, an assessment on the performance of 3D finite element method-based (3D-FEM) models for developing frequency-domain analyses on three-core armored cables, confronting simulation results with experimental measurements found in the literature for three real cables. To this aim, a simplified ultra-shortened 3D-FEM model is proposed to reduce the simulation time during frequency sweeps, through which relevant aspects never analyzed before with frequency-domain 3D-FEM simulations are addressed, such as total losses, induced sheath current, magnetic field around the power cable, positive and zero sequence harmonic impedances, as well as resonant frequencies. Also, a time-domain example derived from the frequency-domain analysis is provided. Remarkable results are obtained when comparing computed values and measurements, presenting the simplified ultra-shortened 3D-FEM model as a valuable tool for the frequency-domain analysis of these cables.

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Experimental validation of ultra-shortened 3D finite element electromagnetic modeling of three-core armored cables at power frequency

Cited by 7 publications

References 26 publications

Evaluation of the power frequency magnetic field generated by three-core armored cables through 3D finite element simulations

Evaluation of the power frequency magnetic field generated by three-core armored cables through 3D finite element simulations

Hybrid Method for Numerical Implementation of Segmented Power Cable Conductors in Finite-element Based Ampacity Calculation

Experimental Validation of Ultra-Shortened 3D Finite Element Models for Frequency-Domain Analyses of Three-Core Armored Cables

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