Detection of Icing and Calculation of Sag of Transmission Line Through Computer Vision

Shivani, P. Greeshma; Harshit, Somani; Varma, Ch.Vamsi; Mahalakshmi, R.

doi:10.1109/icssit48917.2020.9214249

Cited by 9 publications

(2 citation statements)

References 8 publications

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“…In [27], a camera was placed in front of the overhead line, not on the tower, to monitor icing and calculate sag. The camera took a picture of the transmission line.…”

Section: Terrestrialmentioning

confidence: 99%

A survey of sag monitoring methods for power grid transmission lines

Chen

Xiao-lin

2023

IET Generation Trans & Dist

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The transmission line is a fundamental asset in the power grid. The sag condition of the transmission line between two support towers requires accurate real-time monitoring in order to avoid any health and safety hazards or power failure. In this paper, state-of-theart methods on transmission line sag monitoring are thoroughly reviewed and compared. Both the direct methods that use the direct video or image of the transmission line and the indirect methods that use the relationships between sag and line parameters are investigated. Sag prediction methods and relevant industry standards are also examined. Based on these investigation and examination, future research challenges are outlined and useful recommendations on the choices of sag monitoring methods in different applications are made.

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“…In [27], a camera was placed in front of the overhead line, not on the tower, to monitor icing and calculate sag. The camera took a picture of the transmission line.…”

Section: Terrestrialmentioning

confidence: 99%

A survey of sag monitoring methods for power grid transmission lines

Chen

Xiao-lin

2023

IET Generation Trans & Dist

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show abstract

“…Meanwhile, the temperature measurement method shows errors due to uneven temperature distribution along the line. In addition, the global positioning system [ 9 , 10 ] or a camera-based visual system [ 11 ] can be used to determine the position of the lines. Certain methods utilize an optomechanical system, which allows for the line’s sag change to be converted into a chirped fiber Bragg grating optical parameter change [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Transmission Line Sag Measurement and Simulation Research Based on Non-Contact Electric Field Sensing

Zuo

Fan

Ouyang

et al. 2022

Sensors

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Sag is an important indicator of the operational health of a transmission line, and its timely measurement is of great significance to maintain the stability and reliability of power systems. However, traditional contact measurements may be affected by the electromagnetic interference of conductors. In contrast, measurement methods without direct electrical contact with the subject provide greater portability and flexibility. This paper presents a study of a transmission line sag measurement and simulation based on non-contact electric field sensing. The finite element method was used to analyze the conductor distribution, establish the coupling relationships among the electric field, transmission line, and measurement point, propose a sag inverse calculation model, and assess the impact of the transmission line parameter on the curved drooping measurement. Simultaneously, sag measurement schemes for single-round and dual-circuit lines were designed for multi-conductive lines, and measurement array studies were conducted. The vertical component of the electric field in space measured by the array was obtained, which could be used to perform conductor sag measurement simply and efficiently. The proposed method will facilitate the monitoring of the overhead transmission line status, which is conducive to the effective operation of the entire system.

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Monitoring of PV Modules and Hotspot Detection Using Convolution Neural Network Based Approach

Sandeep

Reddy

et al. 2022

IFIP Advances in Information and Communication Technology

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Detection of Icing and Calculation of Sag of Transmission Line Through Computer Vision

Cited by 9 publications

References 8 publications

A survey of sag monitoring methods for power grid transmission lines

A survey of sag monitoring methods for power grid transmission lines

Transmission Line Sag Measurement and Simulation Research Based on Non-Contact Electric Field Sensing

Monitoring of PV Modules and Hotspot Detection Using Convolution Neural Network Based Approach

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