High Frequency Model of Cables for Frequency Domain Analysis used for Fault Localization

Norouzi, Y.; Flindt, Christian; Werle, Peter

doi:10.1109/ichve.2018.8641904

Cited by 2 publications

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To adequately assess these problems on TCACs, detailed and reliable cable models are required to develop timedomain/frequency-domain analyses [6], [10]- [13], where important aspects, like frequency-dependent skin/proximity ef-fects and armor losses, have to be properly considered to avoid costly over-design [10], [12]. In this sense, during the last decade, the use of numerical simulations, such as the finite element method (FEM), has become one of the most powerful and versatile tools for analyzing TCACs.…”

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

View full text Add to dashboard Cite

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.

show abstract