Performance monitoring of wind turbines with fiber optics

The main purpose of a wind turbine is to convert the kinetic energy of the wind into electrical energy in a renewable and sustainable way. It captures the wind by means of its blades, which, as they rotate, drive a generator located in the nacelle of the wind turbine.

Wind turbines produce renewable energy without burning fossil fuels, thereby reducing greenhouse gas emissions and limiting our carbon footprint. By using the wind as a free, inexhaustible resource, wind turbines enhance energy security.

They also provide support for existing electricity grids, since they can inject electricity into the national grid, helping to meet demand, especially during periods of high consumption.

Monitoring the performance of a wind turbine is crucial for numerous reasons. Its purpose is to produce energy, and if one or more wind turbines are becoming less and less efficient, this will lead to a drop in electricity production and therefore an anomaly, or even other more serious problems that could affect its operation and structure.

In fact, by monitoring performance, we can adjust the wind turbine’s parameters (such as orientation and rotation speed) to best capture variations in the wind and produce maximum energy. Monitoring systems also allow early detection of signs of wear or malfunction (vibrations, abnormal temperatures, etc.), so that action can be taken before a costly breakdown occurs. Implementing preventive maintenance and appropriate adjustments can also reduce the mechanical stress on the wind turbine, thereby increasing its longevity.

Finally, the data collected in the field helps to refine the design models and control algorithms for new-generation wind turbines.

The solution supplied by SEDI-ATI Fibres Optiques is designed to be installed inside the wind tower, on the blades, mast and nacelle. It is made up of reinforced, watertight multi-fiber cables. The protective coatings and sheaths are adapted to the environment and dielectric to preserve the fibre and its optical properties. The assembly is made of silica fibers and terminated with all types of standard connectors.

Thanks to our solution, it is possible to detect abnormal temperature variations in key components, measure the forces and deformation on the blades and monitor its rotational force and orientation to adjust the position of the blades in real time to capture the wind optimally.

All our solutions can be custom-made to fit in with your complex or extreme environment.