Predictive Tools for Preventive Maintenance of Wind Energy (WP3)
While WP2 is still ongoing, WP3 of the MAREWIND project began in April 2021, investigating predictive modelling for the preventive maintenance of wind energy assets.
This area of work involves the development of technologies to monitor the structural health of offshore wind facilities, including the creation of models to represent key aspects related to durability and maintenance.
This work, led by IDENER, has set the basis for areas of future work, including:
INEGI are due to develop a blade monitoring technology using drone-mounted cameras to acquire both visible and infrared images of the blades while in use. These images can then be digitally analysed for any sub-surface voids, delamination or displacements. INEGI have designed a lab-scale setup including cameras, synchronisation controllers, and a representative rotating blade. This will be used to test different camera configurations including ‘floating’ cameras to simulate their being mounted in a drone.
In addition, the consortium are developing monitoring technologies based on fibre-optic sensors that will be embedded in representative concrete and blade components to create a real-time sensing system capable of detecting damage. CETMA have begun work on the concrete component with INEGI already focussing on the blades ahead of trials in the coming months.
- Water simulations around gravity-based structures (GBS)
INEGI have also commenced work on simulating the water column around a gravity-based structure (GBS) using computational fluid dynamics. The flow of waves and underwater currents will be simulated with numerical modelling, split into 2D and 3D models to simulate the surface waves and associated currents.
- Structural analysis of composite blades
RINA are creating a finite element computational model for the reinforced fibre composite materials developed for the MAREWIND project. The overall model will interconnect three successive sub-models at different scales to allow the mechanical behaviour of the composite blades to be simulated.
The setup of the mathematical model has already begun, which should be of a suitable representative volume element (RVE) of an elementary composite specimen, considering the constituent materials (matrix and fibres) and their combination.
This model will allow for the calculation of the properties of an equivalent homogeneous material using the known properties of its base materials.
- Modelling of corrosion in atmosphere-exposed metallic structures
The final aspect of this work programme involves the construction of a corrosion mathematical model through a single sacrificial anticorrosion coating layer. Once complete, the complexity of this model can be increased with further layers of anticorrosion protection, including the self-healing layer.
The MAREWIND project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 952960