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13 May 2024 Settlement monitoring for ultra-long GIS equipment based on weak fiber Bragg grating sensing
Xiao Wang, Yuelin Zhu, Guichi Zhu, Xinfei Luo, Ning Wang, Zhuojun Xiao, Shi Xu, Shaopeng Li, Hongqiao Wen
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Proceedings Volume 13159, Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023); 131596X (2024) https://doi.org/10.1117/12.3024256
Event: Eighth International Conference on Energy System, Electricity and Power (ESEP 2023), 2023, Wuhan, China
Abstract
With the widespread use of Gas Insulated Switchgear (GIS) in substations, the impact of foundation settlement on the safety of equipment has attracted increasing attention. This paper investigates a weak fiber Bragg grating static level meter (wFBG-SLM) that can be deployed on a large scale. It utilizes wFBG as temperature and pressure-sensitive elements and establishes a network using time-division multiplexing. Hundreds of sensors can be connected to a single fiber, making it particularly suitable for long-term real-time settlement monitoring of ultra-long GIS equipment foundations. A sensitivity of 0.06mm/pm and a long-term monitoring accuracy of ±0.4mm were achieved through analysis and testing of this wFBG-SLM. The system has been applied to monitor the foundation settlement of GIS equipment in a ±800kV Ultra High Voltage (UHV) converter station. The obtained two months of monitoring data align well with manually observed data and this system demonstrates significant value for widespread application in related structures.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Xiao Wang, Yuelin Zhu, Guichi Zhu, Xinfei Luo, Ning Wang, Zhuojun Xiao, Shi Xu, Shaopeng Li, and Hongqiao Wen "Settlement monitoring for ultra-long GIS equipment based on weak fiber Bragg grating sensing", Proc. SPIE 13159, Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023), 131596X (13 May 2024); https://doi.org/10.1117/12.3024256
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KEYWORDS
Geographic information systems
Optical gratings
Spatial light modulators
Fiber Bragg gratings
Fiber optics sensors
Liquids
Optical sensing
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