Electromagnetic and thermal analysis of high voltage three-phase underground cables using finite element method

Explicit time integration with lumped mass matrix for enriched finite elements solution of time domain wave problems

“…The steel armour, that is used to provide sustenance for the high voltage electrical cables to endure mechanical stress as they are buried underground, also traps electromagnetic disturbances occurring inside the cable due to current imbalances and material defects [51]. The solution of the wave equation inside these geometries provides the distribution of the electromagnetic energy within the material, which then could be coupled with the diffusion equation to analyse various thermal properties [52,53]. Owing to the increase in power demands both for industrial and household usage, such analyses are deemed useful to evaluate performance and prevent ageing of cables.…”

Review on Partial Discharge and Time Domain Reflectometry using Finite Element Analysis

“…It is an effective tool to characterize and perform good reliability and accuracy which can modelled different behavior of cables such as mechanical, thermal, electromagnetic and coupled analyses. At the same time, finite element method can analyze the presence of defect in insulation layer at different level of electric field strength even though the maximum values is higher than the values declared [25].…”

Archives of Electrical Engineering

“…At present, the calculation of cable working temperature is basically based on IEC-60287, a numerical analytical method, optical fiber measurement temperature and infrared thermometry [5]. Reference 6 gives a discussion of the IEC calculation vs. FEM simulation for various cable line layout, the result indicates that the FEM shows a stronger electromagnetic and thermal interference than predicted by the IEC 60287 standard [6]. A new method of an optimized IEC method to calculate the thermal resistance of air inside ducts was proposed, and it was in good agreement with experiments as well as FEM simulations for a wide range of duct and cable sizes [7].…”