Research on Underwater Topography Monitoring of Offshore Wind Turbine Foundation Based on Multi-Beam Data

[Introduction] In order to ensure the safety of operation of offshore wind turbine, it is necessary to grasp the change of topography around the offshore wind turbine foundation. [Method] The multi-beam sounding system was used to monitor the terrain around the wind turbine for 6 times, and the high...

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Main Author: LIU Xinhua
Format: Article
Language:English
Published: Energy Observer Magazine Co., Ltd. 2022-03-01
Series:南方能源建设
Subjects:
Online Access:https://www.energychina.press/en/article/doi/10.16516/j.gedi.issn2095-8676.2022.01.010
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author LIU Xinhua
author_facet LIU Xinhua
author_sort LIU Xinhua
collection DOAJ
description [Introduction] In order to ensure the safety of operation of offshore wind turbine, it is necessary to grasp the change of topography around the offshore wind turbine foundation. [Method] The multi-beam sounding system was used to monitor the terrain around the wind turbine for 6 times, and the high-precision and high-density underwater terrain point cloud data were obtained. Through the data processing and analysis of the point cloud data, the high-precision underwater terrain digital elevation model (DEM) was constructed. Through the superposition analysis of the DEM, the quantity of erosion in different periods was calculated. Finally, the change of terrain in different periods was displayed by 3D model, and the causes of erosion were analyzed. [Result] The most direct reason for the terrain change around the wind turbine is that when a strong typhoon passes through the sea area of the wind farm, the seabed and the local area of the wind turbine usually undergo a large overall change; The combined action of tidal current and waves is another important cause of local erosion and siltation of the seabed topography in this area. [Conclusion] The multi-beam sounding system is effective in monitoring the underwater topography, which can provide important data support for the safe operation and maintenance of offshore wind power. The practice of the project has a good reference significance for carrying out underwater topography monitoring of similar projects.
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spelling doaj.art-dbf19558f1e44af4a3102457463224562022-12-22T02:37:59ZengEnergy Observer Magazine Co., Ltd.南方能源建设2095-86762022-03-0191647010.16516/j.gedi.issn2095-8676.2022.01.010Research on Underwater Topography Monitoring of Offshore Wind Turbine Foundation Based on Multi-Beam DataLIU Xinhua0China Energy Engineering Group Guangdong Electric Power Design Institute Co., Ltd., Guangzhou 510663, Guangdong, China[Introduction] In order to ensure the safety of operation of offshore wind turbine, it is necessary to grasp the change of topography around the offshore wind turbine foundation. [Method] The multi-beam sounding system was used to monitor the terrain around the wind turbine for 6 times, and the high-precision and high-density underwater terrain point cloud data were obtained. Through the data processing and analysis of the point cloud data, the high-precision underwater terrain digital elevation model (DEM) was constructed. Through the superposition analysis of the DEM, the quantity of erosion in different periods was calculated. Finally, the change of terrain in different periods was displayed by 3D model, and the causes of erosion were analyzed. [Result] The most direct reason for the terrain change around the wind turbine is that when a strong typhoon passes through the sea area of the wind farm, the seabed and the local area of the wind turbine usually undergo a large overall change; The combined action of tidal current and waves is another important cause of local erosion and siltation of the seabed topography in this area. [Conclusion] The multi-beam sounding system is effective in monitoring the underwater topography, which can provide important data support for the safe operation and maintenance of offshore wind power. The practice of the project has a good reference significance for carrying out underwater topography monitoring of similar projects.https://www.energychina.press/en/article/doi/10.16516/j.gedi.issn2095-8676.2022.01.010monitoringunderwater topographymulti-beam sounding systemdigital elevation modelerosion quantity
spellingShingle LIU Xinhua
Research on Underwater Topography Monitoring of Offshore Wind Turbine Foundation Based on Multi-Beam Data
南方能源建设
monitoring
underwater topography
multi-beam sounding system
digital elevation model
erosion quantity
title Research on Underwater Topography Monitoring of Offshore Wind Turbine Foundation Based on Multi-Beam Data
title_full Research on Underwater Topography Monitoring of Offshore Wind Turbine Foundation Based on Multi-Beam Data
title_fullStr Research on Underwater Topography Monitoring of Offshore Wind Turbine Foundation Based on Multi-Beam Data
title_full_unstemmed Research on Underwater Topography Monitoring of Offshore Wind Turbine Foundation Based on Multi-Beam Data
title_short Research on Underwater Topography Monitoring of Offshore Wind Turbine Foundation Based on Multi-Beam Data
title_sort research on underwater topography monitoring of offshore wind turbine foundation based on multi beam data
topic monitoring
underwater topography
multi-beam sounding system
digital elevation model
erosion quantity
url https://www.energychina.press/en/article/doi/10.16516/j.gedi.issn2095-8676.2022.01.010
work_keys_str_mv AT liuxinhua researchonunderwatertopographymonitoringofoffshorewindturbinefoundationbasedonmultibeamdata