Datum Wind Turbine Condition Monitoring System suitable for both offshore and onshore wind turbines and is designed to detect and prevent failures of generator, gearboxes and rotor bearing failures in wind turbines, by with highly accurate real-time monitoring.

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Due to the rapid growth of offshore renewable energy in the chase to cut greenhouse gas emissions, the maintenance and repair of wind turbines is representing a major challenge in ensuring safe and cost-effective operation of offshore wind turbines.

According to the insurance company Lloyd’s Germany, one of the biggest causes of wind turbine failure is the gearbox, accounting for over 30% of overall breakdowns. The gearbox connects the low-speed shaft to the high-speed shaft, increasing the rotational speed by about 100-200 times.  Gearbox repair downtime is relatively high, especially for offshore wind turbines, which is due to the accessibility and availability being restricted by distance to the shore, weather windows and environmental conditions. Additionally, a new gearbox costs around £140,000, with a long delivery time (~6 months), not including the cost of its transportation, installation and the cost of the wind turbine being out of order for the duration.

Our Condition Monitoring System for wind turbines is specifically designed to detect and prevent generator, gearbox and rotor bearing failure, with highly accurate real-time monitoring, and analysis, so that staff schedules can be consulted and repairs carried out at an early stage, making considerable savings.

The majority of existing monitoring systems have static sensors mounted around the drive train, providing a great deal of information to the monitoring system. The Datum Dynamic Torque, Shaft Bending and Power Monitoring System provides another layer of data and in many cases, can detect potential changes and hence failures faster than the static system. When the rotary dynamic data is used in conjunction with the static data even more benefits are derived

The torsional data can be used as both a control input to improve efficiency and a condition monitoring input to predict failures.

Datum Wind Turbine Condition Monitoring SystemWIND TURBINE CONDITION MONITORING SYSTEM FEATURES

  • Accurate Power Measurement Data
  • Dynamic Torsional Data
  • Dynamic Shaft Bending Data option
  • 100% Contactless
  • Easy to Install: Either by our own field engineers or we can provide training
  • Modular Design (can fit any wind turbine shaft)
  • High Instrumentation Accuracy and repeatability
  • Robust Design: IP68
  • Efficient Power Usage (compared to other systems)
  • Maintenance Free
  • No Re-Calibration
  • Multiple Digital & Analogue Outputs: RS485, Rs232, Modbus, Ethernet, 0-10V, 4-20mA
  • Short Lead Times
  • Local USB Logging port for additional engineer Analysis
  • Data Integration with Higher-Level Systems

Gathering extensive knowledge from other industries over the last three decades, Datum Electronics has specifically developed the Condition Based Monitoring System for Wind Turbines. The system is suitable for both offshore and onshore wind turbines, is easy to install and can be deployed even in the harshest of environments.

The Datum system can be installed in a less than a day, on any drive shaft which has a clear length of over 150mm. Once installed, the data from the system can be sent via Ethernet or RS485, either to the user or directly, or our team, who can provide reports based on the drive condition, from the data obtained. Datum Electronics’ team provide a service to monitor multiple wind turbines and link the data to operational maintenance records. Once linked, the data can be used as a key input to maintenance planning.

WIND TURBINE CONDITION MONITORING SYSTEM BENEFITS

  • Reduction of maintenance costs
  • Planning of repairs
  • Detailed diagnosis
  • Cause analysis of damage events
  • Trend recording

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WIND TURBINE CONDITION MONITORING SYSTEM INSTALLATION

When installed on a wind turbine, the system can be mounted on ANY of the shaft(s), for example between the main bearing and gearbox, on a slow-speed high torque shaft, to provide real time actual data on bearing, gearbox and blade (i.e. damage or imbalance) conditions, comparing the dynamic torque measurements, to the standard known base-line readings.

The system will give:
– Accurate shaft power measurement
– Shaft torque
– Shaft RPM
– Torsional vibration of the shaft
– Shaft signature or profile
– Shaft bending

Additionally, the system can also be installed after the gearbox, on a high-speed output shaft, allowing power generated to be measured, as well as providing information on the condition of the generator.

Having two systems installed on either side of the gearbox enables measurement of the efficiency of the wind turbine gearbox, which depending on the number, can result either in power loss or energy saving.

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POSSIBLE APPLICATIONS

  • Gearbox
  1. Wear and tear
  2. Breaks
  3. Displacement
  • Rotor
  1. Fatigue
  2. Cracks
  3. Blade balance error
  4. Damages caused by a hostile environment
  • Generator
  1. Efficiency
  2. Damage
  3. Breaks
  4. Overheating
  • Bearings
  1. Wear & Tear
  2. Defects
  3. Fatigue
  4. Cracks
  • System
  1. Performance
  2. Environmental Influences
  3. Cracks
  4. Fatigue
  5. Damages
  6. Yaw errors

 

With Datum Wind Turbine Condition Monitoring system, it is possible to detect damage at early stages, protect equipment from unnecessary costly breaks and create more cost-effective maintenance schedules. Want to Know More?

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