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Rexroth releases improvements to condition monitoring and blade controls

By Paul Dvorak | May 20, 2014

Cost of energy (CoE) is the key measure of wind turbine efficiency, as well as being a top priority for turbine operators. Condition monitoring systems make an important contribution in this regard, enabling condition-oriented maintenance to reduce operating costs, and therefore the CoE, in a sustainable manner. Rexroth says its ACoS, the Advanced Condition Monitoring System, is a first in that it combines condition monitoring for all components in the power train of a wind turbine and intelligently networking measurement data from different sensors. A standardized operating interface for all sub-systems speeds up the analysis process and reduces the need for training.

Bosch rex acos

Holistic condition monitoring from Bosch Rexroth keeps wind turbine operators in the loop.

The BLADEcontrol rotor blade monitoring system lets Bosch Rexroth AG join forces with technology company DMT GmbH & Co. KG to develop the holistic ACoS condition monitoring system. The system combines monitoring for all relevant function groups by means of a standardized and continuous connection to a control desk, thereby reducing the need for hardware. By synchronizing the data measurement process, the detection sensitivity and data quality are also increased.

The universal system philosophy enables easier operation while simultaneously increasing the efficiency and transparency of the monitoring, covering a considerably greater number of turbines by each monitoring expert. The system reduces turbine monitoring costs, while also improving the ability to plan for maintenance operations. Operators of onshore and offshore wind turbines are thereby able to reduce their CoE on a long-term basis over the entire service life of the turbine.

The systems combines proven measurement and analysis strategies to form a holistic monitoring strategy on an open platform composed of individual function modules. All measurements are synchronized with each other. By combining monitoring of the rotor and power train, abnormalities on one component can be checked and verified by means of cross-comparison with the measurement data of the other component.

In addition to holistic turbine monitoring, ACoS includes GL-certified ice detection on the rotor blades. This option eliminates on-site inspections of wind turbines to ensure that they are free of ice – a measure that is still required in many cases – and thereby allows the turbine to be restarted safely and promptly once the ice is no longer present.

Bosch Rexroth
www.boschrexroth-us.com.


Filed Under: News
Tagged With: boschrexroth
 

About The Author

Paul Dvorak

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