Conductor Reconstruction for Dynamic Line Rating Using Vehicle-Mounted LiDAR

Dynamic Line Rating (DLR) is a process which electrical network operators can implement to improve efficiency by dynamically adjusting the load capacity as conditions allow. To implement DLR an accurate model of the conductors and their clearances is needed. Airborne LiDAR, while expensive, is the m...

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Main Authors: Josh McCulloch, Richard Green
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Remote Sensing
Subjects:
Online Access:https://www.mdpi.com/2072-4292/12/22/3718
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author Josh McCulloch
Richard Green
author_facet Josh McCulloch
Richard Green
author_sort Josh McCulloch
collection DOAJ
description Dynamic Line Rating (DLR) is a process which electrical network operators can implement to improve efficiency by dynamically adjusting the load capacity as conditions allow. To implement DLR an accurate model of the conductors and their clearances is needed. Airborne LiDAR, while expensive, is the most common method of collecting line data as it is fast and is of high quality. State of the art methods for automatically reconstructing conductors first classify conductor points before fitting conductor models. This approach works well for high tension lines with significant separation between conductors but tends to perform poorly in urban environments where conductors are packed tightly together and surrounded by clutter. The method presented in this article attempts to overcome these challenges by performing an informed search for the conductors, anchored to the utility poles. Before the conductors are classified, their layout and sag are estimated, converting conductor segmentation into a linear problem; and a 3D to 2D projection is used to improve density and simplify clustering. The work also attempts to reduce the cost of conductor reconstruction by utilising lower-cost vehicle-mounted LiDAR. By avoiding point classification, higher precision can be achieved in scenarios where previous methods have suffered from significantly degraded performance.
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spelling doaj.art-8a21958907544775baa256b7aa652cab2023-11-20T20:45:39ZengMDPI AGRemote Sensing2072-42922020-11-011222371810.3390/rs12223718Conductor Reconstruction for Dynamic Line Rating Using Vehicle-Mounted LiDARJosh McCulloch0Richard Green1Department of Computer Science and Software Engineering, University of Canterbury, Christchurch 8041, New ZealandDepartment of Computer Science and Software Engineering, University of Canterbury, Christchurch 8041, New ZealandDynamic Line Rating (DLR) is a process which electrical network operators can implement to improve efficiency by dynamically adjusting the load capacity as conditions allow. To implement DLR an accurate model of the conductors and their clearances is needed. Airborne LiDAR, while expensive, is the most common method of collecting line data as it is fast and is of high quality. State of the art methods for automatically reconstructing conductors first classify conductor points before fitting conductor models. This approach works well for high tension lines with significant separation between conductors but tends to perform poorly in urban environments where conductors are packed tightly together and surrounded by clutter. The method presented in this article attempts to overcome these challenges by performing an informed search for the conductors, anchored to the utility poles. Before the conductors are classified, their layout and sag are estimated, converting conductor segmentation into a linear problem; and a 3D to 2D projection is used to improve density and simplify clustering. The work also attempts to reduce the cost of conductor reconstruction by utilising lower-cost vehicle-mounted LiDAR. By avoiding point classification, higher precision can be achieved in scenarios where previous methods have suffered from significantly degraded performance.https://www.mdpi.com/2072-4292/12/22/3718conductor reconstructionurban power linevehicle-mounted LiDAR
spellingShingle Josh McCulloch
Richard Green
Conductor Reconstruction for Dynamic Line Rating Using Vehicle-Mounted LiDAR
Remote Sensing
conductor reconstruction
urban power line
vehicle-mounted LiDAR
title Conductor Reconstruction for Dynamic Line Rating Using Vehicle-Mounted LiDAR
title_full Conductor Reconstruction for Dynamic Line Rating Using Vehicle-Mounted LiDAR
title_fullStr Conductor Reconstruction for Dynamic Line Rating Using Vehicle-Mounted LiDAR
title_full_unstemmed Conductor Reconstruction for Dynamic Line Rating Using Vehicle-Mounted LiDAR
title_short Conductor Reconstruction for Dynamic Line Rating Using Vehicle-Mounted LiDAR
title_sort conductor reconstruction for dynamic line rating using vehicle mounted lidar
topic conductor reconstruction
urban power line
vehicle-mounted LiDAR
url https://www.mdpi.com/2072-4292/12/22/3718
work_keys_str_mv AT joshmcculloch conductorreconstructionfordynamiclineratingusingvehiclemountedlidar
AT richardgreen conductorreconstructionfordynamiclineratingusingvehiclemountedlidar