Dewesoft data acquisition systems are used on offshore wind turbines for online wind turbine condition monitoring and wind turbine structural health monitoring with the aim to achieve the reduction of the cost of wind energy and optimize ROI.
The condition monitoring system provides distributed high-channel-count and remote monitoring. We provide a turn-key solution from DAQ systems, and data loggers, to sensors together with Windows-based data processing and high-level cloud-based monitoring software.
Complete Turn-key Solution: Dewesoft condition monitoring system is a complete solution including highly accurate signal conditioning systems, data acquisition and processing software, sensors, and accessories that are used in structural health and condition monitoring of wind turbine towers.
Totally Distributed System: Dewesoft DAQ devices are designed to be distributed under any condition. EtherCAT technology allows devices to be placed near the sensors and connected with a single cable for power, data, and synchronization. The cable can span up to 100m between DAQ nodes or virtually unlimited using EtherCAT to fiber optic converters.
Support for Any Sensor: Input amplifiers offer support for any strain gauge, low-frequency accelerometer, temperature, weather, wind power, and wind turbine performance monitoring sensors.
Perfectly Synchronized: All data channels are synchronized well below microsecond accuracy, required for deep structural analysis.
Amazing Dynamic Range: With dynamic ranges up to 160dB, our customers are claiming they can see fish hitting the structure.
Wide Variety of Configuration: From extremely rugged IP67 units with very high dynamic range to cost-effective solutions offer a tailored approach for virtually any structure with the possibility to monitor and analyze thousands of data points.
Powerful Software: DewesoftX software offers real-time diagnosis, pre-processing, and data reduction with powerful math. A wide variety of storage options are possible with powerful visualization choices.
Open Interfaces: Using DewesoftX, data is available in a wide variety of formats, from exported data to live OPC UA interface or modern cloud data services.
Remote Operation: The entire system can be remotely operated offering triggered storing, alarms, and other monitoring features with capabilities to store data locally or at distant remote locations.
Wind turbine condition monitoring is aimed at detecting changes in wind turbine behavior as early as possible. The main goal is to predict developing faults in order to minimize performance degradation and economic cost. It is performed by constant monitoring of specific parameters and comparing them to parameters obtained during “normal” operational behavior.
Condition Monitoring is focused on monitoring wind turbine drivetrain components. Dewesoft offers condition monitoring solutions for any kind of rotating machinery like shafts, bearings, gearboxes, and generators.
The most commonly used sensors for Wind Turbine Condition monitoring are:
Condition Monitoring in the case of structural components, like foundations, blades, and towers, is termed Structural Health Monitoring. Failures of Wind Turbine Structural components can significantly affect the wind turbine operational costs and in some cases can result in a complete loss of the turbine (tower collapse).
Offshore wind turbines are particularly exposed to harsh environments (wind, wave load, stress, corrosion) and higher risk. Therefore it is essential to perform monitoring of the structural components to reduce maintenance costs and avoid catastrophic failures.
The most common sensors for Wind Turbine Structural Health Monitoring are:
Dewesoft can offer a complete SHM solution for monitoring all the necessary parameters (vibration, strain, inclination, temperature measurements) needed to assess the condition of wind turbine structural components.
Wind turbine vibration monitoring is the most commonly used technique in Wind Turbine condition monitoring due to the fact that most damages in rotating machinery are reflected as higher vibration levels at frequencies specific to a developing fault.
In the case of Structural Health Monitoring vibration data is collected to perform the Operational Modal Analysis technique in order to detect developing faults. Changes in geometric and stiffness properties are reflected as changes in modal properties like modal shapes, damping ratios, and natural frequencies.
Dewesoft offers state-of-the-art 3-axial accelerometers with integrated data acquisition (IOLITE-3xMEMS-ACC) specifically designed for vibration monitoring of structures. DewesoftX data processing software offers a wide range of vibration math capabilities. Export options are available to facilitate the performance of Operational Modal Analysis and assessment of structural health.
