Diagnosing faults in wind turbines

It used to be impossible to compare the power curve advertised by wind turbine manufacturers with the curve in real conditions – but not any more, thanks to the invention of Windturbine Performance Level. This new IT monitoring tool developed by EDF and EDF Energies Nouvelles Services’ R&D teams provides automatic and in-depth analysis of wind turbines’ efficiency. The smart sensor archives results and also compares them with those of other turbines. This allows the operator to identify specific turbines that are under-performing and cross-reference all available information to determine the causes of output gaps.Windturbine PL has been rolled out at 12 pilot wind farms to monitor 181 turbines. It diagnosed 500,000 euros’ worth of faults between January and June 2014Successful testsWindturbine PL has been rolled out at 12 pilot wind farms to monitor 181 turbines. It diagnosed 500,000 euros’ worth of faults between January and June 2014 just on this small sample of wind farms. Following analysis, the operator was able to identify the causes of under-performance – a major cause was incorrect pitching of the anemometer located at the top of the turbine’s nacelle (an anemometer is a device that calculates wind speed and pressure). This precise diagnosis allowed the operator to take remedial action. The success of these initial tests means development of the analysis tool can be planned, along with enhancement of its functions, through integration into EDF Energies Nouvelles Services’ IT system.To go further
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