Abstract
This paper proposed a novel noncontact technology of operation-state monitoring based on magnetic-field sensing for high-voltage transmission lines, which can simultaneously measure both electrical and spatial parameters in real time. This technology was derived from research on the magnetic-field distribution at the ground level when the transmission lines operate in different states, including sagging, galloping, and current imbalance. Two typical models of high-voltage three-phase transmission lines were simulated, and the resulting magnetic fields were calculated. The correlation between the magnetic-field variations and the operation states were analyzed. Based on such correlation, a source reconstruction method was developed to reconstruct the spatial and electrical parameters from the magnetic field emanated by the overhead transmission lines. The reconstruction results for the 500-kV and 220-kV transmission lines verify the feasibility and practicality of this novel noncontact transmission-line monitoring technology based on magnetic-field sensing. © 1986-2012 IEEE.
Recommended Citation
X. Sun et al., "Noncontact Operation-state Monitoring Technology Based On Magnetic-field Sensing For Overhead High-voltage Transmission Lines," IEEE Transactions on Power Delivery, vol. 28, no. 4, pp. 2145 - 2153, article no. 6576920, Institute of Electrical and Electronics Engineers, Aug 2013.
The definitive version is available at https://doi.org/10.1109/TPWRD.2013.2264102
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
Magnetic-field sensing; magnetoresistive sensor; noncontact monitoring; overhead transmission line; smart grid
International Standard Serial Number (ISSN)
0885-8977
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
19 Aug 2013
