1. Energy Buffer

Rechargeable, bridging up to 1000 hours and more depending on the type of application.

2. Energy Harvesting

A flexible solar cell allows for a nearly unfinite power supply from daylight.

3. Impedance measurement

Ice and the according layer thickness, but also other surface layers such as dirt or soiling, can be detected and quantified.

4. Temperature measurement

Surface temperature is measured at an accuracy of 0.25°C.

5. Entirely wireless

Over a radio link, the sensor units wireless transmit the data to the base station, exceeding 250m of range.

Coming up next: eolACC

co-funded by the European Union’s H2020 SME Instrument

Operations and maintenance of wind turbines is one of the highest cost sources during a turbine life, adding up to 40% of all costs. Blade maintenance and repair are one of the largest issues, at 20% of all O&M expenses. Much of this is caused by a lack of effective condition maintenance solutions. The vast majority of maintenance is carried out by climbers inspecting the blades visually. In addition, turbine efficiency due to pitch misalignment is currently not verified. While sensor systems do exist, these are inside the blade and close to the root, invasive  and not addressing the area most affected, the tip. The largest wind turbine manufacturers have highlighted the need for continuous monitoring to optimize the maintenance schedule.

eoIACC is the first on-blade condition maintenance sensor placed at blade tips for continuous monitoring. It will have a 3-in-1 role, continuously measuring vibrations to monitor blade health, provide pitch angle corrections and detect blade icing to minimise downtime in cold climates. We will be the first to measure live pitch angles without stopping the turbine rotor, bringing significant reductions in the downtime of the wind turbine.