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Use of Digital Twins for Integrity Monitoring of Bottom Mounted Fixed Offshore Wind Turbines

Wednesday, 3 May
Energy Transition Pavilion Stage
Energy Transition Presentations
A digital sensing technology is presented for near real time structural integrity monitoring of bottom fixed offshore wind turbines. Unlike a typical floater, these structures are less compliant to the environments and as such structural health monitoring becomes of paramount importance for safe and reliable operations. The core concept behind this technology is to detect imperceptible changes to the structural behavior by monitoring closely the various natural frequencies and mode shapes of the turbines. These changes in structural behavior can be a precursor to structural member failure. Also of importance is the subsidence of such facilities, which can be detected by closely monitoring the long term platform tilt. An added benefit of such monitoring systems is to have a record of the turbine load and motion cycles, which can be very useful for asset extension studies at the end of design life. At the core of the structural monitoring system are the sensors: the Micro Electro Mechanical Systems (MEMS) based inertial sensors, and BMT DEEP, a cloud platform that stores, manages, integrates, post-processes and displays the vast data sets collected. Recent improvements in MEMS sensor technologies have provided opportunity for inertial sensing at a much lower cost and power. Also, distributed data storage, satellite communication and computing improvements have enabled complex processing tasks, be performed at the edge on a lower budget. New IOT network technologies and protocols enable near real-time connectivity of the sensor systems directly to the cloud-based platforms and web applications, allowing remote monitoring of the asset.
Speakers
Suvabrata Das, Principal Data Analyst - BMT

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