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

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

doi:10.1016/j.epsr.2022.108701

Cited by 8 publications

(5 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The obtained curve is more illustrative of the distribution of the magnetic induction intensity inside the cable, as shown in Figure 3. Research on the simulation and analysis of the magnetic field of cables already exists, and simulation result patterns are consistent with this paper, which qualitatively verifies the accuracy of the simulation in this paper [20][21][22].…”

Section: The Magnetic Field Of Cable Accessories In Good Conditionsupporting

confidence: 87%

See 1 more Smart Citation

Effect of Interface Defects on the Harmonic Currents in Distribution Cable Accessories under Damp Conditions

Sun

et al. 2023

Coatings

View full text Add to dashboard Cite

Dampness is one of the most important factors leading to the degradation of the insulation performance of cable accessories; it may easily lead to interface defects of composite insulation. In this paper, an electromagnetic field defect model of the cable composite insulation interface is established, and the effects of the defect degree and the defect type on the magnetic flux and the harmonic current are studied. The results show that the magnetic field is uniformly distributed with a decreasing trend when the cable is in good condition, and the grounding current has no obvious harmonic component. For different defects, the magnetic field changes at the defect location are notably different; for water droplets and the water film, the magnetic field distortion is obvious at the location of the defect and sheath, and for water tree defects, the distortion of the magnetic field is significant. In addition, the degree of distortion caused by the same defect at different positions is also different, and the magnetic field contrast is not obvious at different degrees of moisture exposure. The distortion of the grounding current caused by the water tree is higher than that of the water droplet and the water film, and the characteristics of the harmonic components of the grounding current caused by different defects have obvious distinctions. The type of cable defect can be judged by the proportion of harmonic components. This work can be used as a reference for the assessment of the cable insulation defect status.

show abstract

Section: The Magnetic Field Of Cable Accessories In Good Conditionsupporting

confidence: 87%

“…The simulation of the magnetic field of the cable in the presence of water droplets and the magnetic field distribution at t = 15 ms for different defect degrees are shown in Figures 4 and 5. this paper, which qualitatively verifies the accuracy of the simulation in this paper [20][21][22].…”

Section: Effect Of Water Droplet Defects On the Magnetic Fluxsupporting

confidence: 80%

Effect of Interface Defects on the Harmonic Currents in Distribution Cable Accessories under Damp Conditions

Sun

et al. 2023

Coatings

View full text Add to dashboard Cite

show abstract

“…In addition, the 3-phase cables are helically twisted which reduces the magnetic field level as the fields of the three cores party cancel each other out. This cancellation could not be taken into account in the model, as it would require information on the twist length periodicity (the cores have made a 360° twist around each other), which is currently not provided in cable specifications [82]. For bundled DC cables the orientation in which the cables are placed on/in the seabed (vertical, horizonal or diagonal) influences the interaction with the geomagnetic field.…”

Section: Comparing Measured and Modelled Emf Levelsmentioning

confidence: 99%

Do electromagnetic fields from subsea power cables effect elasmobranch behaviour? A risk-based approach for the Dutch Continental Shelf

Hermans,

Winter,

Gill

et al. 2023

Preprint

View full text Add to dashboard Cite

Subsea power cables cause electromagnetic fields (EMFs) into the marine environment. Elasmobranchs (rays, skates, sharks) are particularly sensitive to EMFs as they use electromagnetic-receptive sensory systems for orientation, navigation and locating conspecifics or buried prey. Cables may intersect with egg laying sites, foraging habitat and migration routes of elasmobranchs and the effects of encountering EMFs on species of elasmobranchs are largely unknown. Demonstrated behavioural effects are attraction, disturbance and indifference, depending on EMF characteristics, exposed life stage, exposure level and duration. We estimated exposure levels of elasmobranchs to subsea cable EMFs, based on modelled magnetic fields in the Dutch Continental Shelf and compared these to reported elasmobranch sensory sensitivity ranges and experimental effect levels. We conclude that the risk from subsea power cables has a large uncertainty and varies per life stage and species ecology. Based on estimated no-observed effect levels (from 10-3to 10-1µT) we discuss what will probably be the most affected species and life stage for six common benthic elasmobranchs in the Southern North Sea. We identify critical knowledge gaps for reducing the uncertainty in the risk assessments for EMFs effects on elasmobranchs.

show abstract

“…Andrew summarized the electric and magnetic fields generated by cables in offshore wind farms, quantifying them through the finite element method (FEM), indicating that cables with excellent shielding properties do not directly produce electric fields outside the cable, yet they induce magnetic fields in the external environment [11]. Del-Pino-López utilized an ultra-shortened 3D-FEM model to investigate the magnetic field around such cables, offering insights into how cable material and design influence magnetic fields and proposing optimized designs [12]. Another issue that needs to be addressed urgently is temperature.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on Electromagnetic Thermal Performance of Non-Metallic Armoured Optoelectronic Cable Winch System

Li,

Wu,

Lin

et al. 2024

JMSE

View full text Add to dashboard Cite

Non-metallic armoured optoelectronic cable winch systems (NAOCWSs) play critical roles in facilitating signal transmission and powering subsea equipment. Due to the varying depths in these applications, deploying the entire cable length is unnecessary. However, the portion of the cable that remains coiled around the winch can generate an electromagnetic field, which may interfere with signal transmission and induce electromagnetic heating. This can lead to elevated temperatures within the system, affecting the cable’s lifespan. Consequently, this study examines the distributions of magnetic and temperature fields within the NAOCWS with different currents (10–30 A) and numbers of winding layers (1–10). Findings indicate that the magnetic flux density (MFD) changes periodically, and the period is closely related to the distance between the cables. At the centre of the cable, the flux density is minimum. Temperature distribution correlates with both current amplitude and the number of winding layers, where an increase in either parameter amplifies the temperature variance between the edge and intermediate cables within the same layer. The current does not affect the internal temperature distribution pattern. With the number of winding layers determined, the layer where the highest temperature of the system is located is well defined and does not vary with current.

show abstract

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

Cited by 8 publications

References 20 publications

Effect of Interface Defects on the Harmonic Currents in Distribution Cable Accessories under Damp Conditions

Effect of Interface Defects on the Harmonic Currents in Distribution Cable Accessories under Damp Conditions

Do electromagnetic fields from subsea power cables effect elasmobranch behaviour? A risk-based approach for the Dutch Continental Shelf

Numerical Study on Electromagnetic Thermal Performance of Non-Metallic Armoured Optoelectronic Cable Winch System

Contact Info

Product

Resources

About