BruWind's monitoring solutions presented at EWEA 2013 in Vienna

BruWind/OWI presented its monitoring solutions for offshore wind turbines at EWEA 2013 in Vienna.

EWEA is Europe’s Premier Wind Energy Event. (http://www.ewea.org/annual2013/)

 

From left to right: Christof Devriendt, Pieter Jan Jordaens, Gert De Sitter, Stefan Millis, Yves Van Ingelgem, Nikolaas Van Riet, Daan De Wilde

 

Following presentation have been given:

 

1. Title: MONITORING OF RESONANT FREQUENCIES AND DAMPING VALUES OF AN OFFSHORE WIND TURBINE ON A MONOPILE FOUNDATION 

Authors: Christof Devriendt, Gert De Sitter, Yves Van Ingelgem, Pieter Jan Jordaens, Patrick Guillaume

Download Presentation: click here

Download Full Paper: click here

 

2.Title: CONTINUOUS CORROSION MONITORING OF MONOPILE FOUNDATION STRUCTURES 

Authors: Yves Van Ingelgem, Daan De Wilde, Christof Devriendt, Gert De Sitter, Pieter Jan Jordaens, Annick Hubin 

Download Presentation: click here

 
 

Some: Background info:

 

BruWind/OWI developped data-acquisition systems, dedicated sensors and analysis services for offshore testing and structural health monitoring.These developments allow gaining the insights that are crucial to minimize construction and installations costs, extend the lifetime of offshore structures and reduce their operation and maintenance costs.

A way to minimize O&M costs is early detection or even prediction of a reduced structural integrity.  Structural health monitoring is a key-expertise within BruWind. Structural health monitoring involves damage detection and characterization of structures through the observation of the system over time using measurements from different sensors. When it comes to offshore structures, scouring, corrosion and reduction in foundation and grout integrity over time can be problematic. Continuous monitoring can therefore help to prevent failures and make better decisions on when to plan maintenance activities.

 

Ongoing Monitoring Campaigns at BelWind

Currently BruWind is performing several monitoring campaigns at the offshore wind farm BelWind, which consists of 55 Vestas V90 3MW wind turbines placed on monopile foundations. The wind farm is located in the North Sea on the Bligh Bank, 46 km off the Belgian coast.

Dynamic monitoring: this monitoring system allows for the continuous monitoring of the vibration levels, resonant frequencies and damping values of the fundamental modes of the wind turbine and its foundation structure.

Grout monitoring:  this monitoring system allows for the continuous monitoring of the loads taken by the grout connection and the relative displacement between the monopile and the transition piece.

Corrosion monitoring:  this monitoring system allows for the continuous monitoring of the corrosion rates, corrosion potential and oxygen concentration inside the monopile foundation.