Surface Magnetic Field and Phase Current Sensing of Steel Tape-Wrapped 3-Core MV Cables
Zuhan Zhao, Jixiong Xiao, Hang Li, Hang Wang
TL;DR
This paper presents a method to accurately measure the surface magnetic field and phase currents in steel tape-wrapped three-core medium voltage cables.
Contribution
A new model and differential evolutionary algorithm are proposed to account for steel tape shielding effects in magnetic field measurements.
Findings
The difference between analytical and numerical solutions is below 5%.
The differential evolution algorithm accurately estimates three-phase currents with a maximum amplitude error of 4.83%.
The algorithm measures phase angles with a maximum error of 8.01°.
Abstract
The surface magnetic field of three-core cables is essential for estimating phase currents and locating the single-phase grounding faults. However, the double-layer steel tape-wrapped structure will shield the magnetic field, affecting the measurement of the surface magnetic field of the three-core cable. Disregarding the shielding effect of the steel tape during the measurement of the surface magnetic field of the cable leads to an erroneous phase current obtained from the inversion of the observed magnetic field. To measure the surface magnetic field and invert it to obtain three-phase currents accurately, a model to evaluate the shielding effect of the steel tape is proposed, and a differential evolutionary algorithm method is proposed to invert it to obtain the three-phase currents. The results indicate that the difference between the analytical and numerical solutions is below 5%.…
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
Click any figure to enlarge with its caption.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsNon-Destructive Testing Techniques · Magnetic Field Sensors Techniques · Thermal Analysis in Power Transmission