As a large-scale equipment for outdoor work, the offshore machine is facing the severe test of "sea and wind" for a long time, affected by the corrosive offshore air composition, once the fan blades are corroded and cracked, falling, broken, etc., the light will be shut down and lost, and the wind turbine will collapse and even personal injury accidents. In addition, the wind turbine has to resist the rain, snow, frost and fog brought by the cold weather every winter. In the northern waters of China, sea ice forms in winter, which freezes on the turbine components and affects the rolling of the wind turbine, and the low temperature also reduces the function of the turbine parts and lubricating oil.
Ensuring the safety and reliability of the work of wind turbine equipment, while taking into account the cost and efficiency of the work, has always been the core issue of great concern to a Haifeng power manufacturer.
Thanks to many years of knowledge in blade monitoring and many years of experience in the wind industry, Weidmüller provided the wind turbine manufacturer with a customized solution with its blade condition monitoring system, BLADEcontrol®. Based on the high-precision accelerometer, the oscillation signal of the swing and wave direction of the wind turbine blade is collected, and the data model of the existing non-destructive blade is modeled by using specific algorithms and data models to confirm the natural frequency model of the blade. Further, the system will pre-learn a large amount of collected data to establish an oscillation model of the blade during normal operation. When the blade oscillation model is established, the blade online monitoring system can collect, calculate, and analyze the blade oscillation data in real time, and compare it with the normal model data in real time, so as to detect and monitor the blade abnormality as soon as possible. Because the aging of the leaves is constantly changing with the passage of time, the sooner the data model of the leaves themselves is established, the more accurately the system can monitor and judge the leaves.
BLADEcontrol's® ability to perceive, profiling and guess maintenance has brought considerable benefits to the wind turbine manufacturer. First of all, in the long-term work of the offshore power machine, this system has always maintained a continuous record of the condition of each blade individually, and perceives all small changes, so as to assist the operator of the offshore power project to detect the extremely small damage suffered by the blade in the early stage, such as the blade tip damage caused by lightning strikes, the cracking of the trailing edge, the web separation or the damage of the blade bearing, etc., in addition, it can also firmly detect the dynamic imbalance and overload of the blade and other working errors, and then significantly shorten the customer's unexpected downtime and ensure the safety of the system. Work efficiently.
Secondly, this system has a reliable icing detection function, which provides common value for the use of offshore power in the north. This highly sensitive DNV GL certified system protects against ice injuries and reduces downtime by actively restarting the unit after ice falls or melts. Units equipped with this system are able to reduce downtime several times in a winter, and the ROI calculator for icing detection supplied by Weidmüller can clearly calculate the return on investment of blade monitoring for icing units.
For the crew engineers of the project, data-based intelligent operation and maintenance is particularly important. With the help of Weidmüller's BLADEcontrol® system, the engineers have significantly increased the availability of the system and reduced the overall O&M costs.
With the intelligent monitoring and operation and maintenance solution plan driven by wind turbine big data, with significant customer value advantages are becoming the general trend of the profession, Weidmüller has always been a reliable partner for wind power professional customers with high-quality component products and a variety of proven customized solutions.
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