OWI-Lab - Offshore Monitoring Research
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The document discusses an OWI-Lab monitoring infrastructure that focuses on continuous monitoring of offshore wind turbines. It describes 5 cases of monitoring key components: 1) vibration of the transition piece, tower, and nacelle, 2) dynamic behavior of the tower and foundation, 3) corrosion of the foundation structure, 4) loads and displacements of grout connections, and 5) dynamic behavior of the drive train. The goal is to use monitoring data and advanced modeling to improve both design, by reducing costs, and operations and maintenance strategies, by reducing expenses.
OWI-Lab - Offshore Monitoring Research
- 1. OWI-Lab Monitoring Infrastructure Remote measurement & monitoring systems (SHM & CMS) Continuous monitoring of tower, foundation and drive train R&D Infrastructure - Hardware Data-pool Modelling Software / Monitor Solutions Improved Design (reducing CAPEX) / Improved O&M Strategies (reducing OPEX)
- 2. CASE 1: CONTINUOUS MONITORING OF VIBRATION LEVELS ON TRANSITION PIECE, TOWER AND NACELLE Condition Monitoring according VDI guidelines
- 3. CASE 2: CONTINUOUS MONITORING OF THE DYNAMIC BEHAVIOUR OF THE TOWER AND FOUNDATION STRUCTURE O&M Scour monitoring DESIGN Advanced post-processing techniques for continuous dynamic monitoring of the structure (damping, frequency,…) Automated Operationa Modal Analysisl Estimating soil stifness and aerodynamic damping
- 4. CASE 3: CONTINUOUS CORROSION MONITORING OF THE FOUNDATION STRUCTURE Single day installation Onshore data warehouse Regular reports Advanced hardware and processing techniques for continuous monitoring: -Corrosion rate -Oxygen levels (dissolved / gas) - Potentials DESIGN + O&M
- 5. CASE 4: CONTINUOUS MONITORING OF LOADS AND DISPLACEMENTS FOR EVALUATING THE GROUT CONNECTION New Measurement Concepts using optical fibers Estimating remaining lifetime Advanced post-processing techniques for continuous load ans strain monitoring within and around the grout-connection DESIGN + O&M Removing operating and ambient influences
- 6. CASE 5: CONTINUOUS MONITORING OF DYNAMIC BEHAVIOUR OF THE DRIVE TRAIN Optimal design and maintenance insure the well functioning of a wind turbine drive train including the gearbox Both simulation models and optimized measurement techniques are needed to achieve both goals IMPROVED DESIGN + O&M Combining gearbox surface vibration data with internal flexible multibody models to retrieve information on the relevant parameters for the remaining life assessment of wind turbine gearboxes