Solutions for ice detection


Autonomous sensors  

Autonomous sensors

  • Icing on the rotor blades does not only lead to hazards for the wind turbine generator, but also to dangers to the environment and to persons.
  • Phoenix Contact provides a reliable ice detection system for rotor blades for increasing the yields of your wind turbine generators.
  • Our solution measures the coating thicknesses of potential ice deposits and the temperature directly on the surface of the rotor blade.


For wind turbine generators to achieve maximum yields, a trouble-free system status must be guaranteed. Under extreme climatic conditions, however, ice can accumulate on the rotor blades. Falling chunks of ice can cause significant damage. The early detection of ice accretion is important to ensure that the system can be stopped in the event of danger and that the de-icing system can be started.


Ice detection control cabinet  

Evaluation unit as a part of the complete Blade Intelligence solution

The ice detection system from Phoenix Contact measures the severity of ice accretion on the rotor blades and ensures that the wind turbine generator operates reliably.

The evaluation algorithm, certified by the DNV GL accreditation company, decides whether to allow operation to continue or to shut down the wind turbine generator.

Autonomous sensors  

Autonomous sensors

The sensors, which are simply stuck on, measure the coating thickness of the ice as well as the external temperature on the rotor blade. The sensor is supplied directly with solar power and has a storage capacity of up to 1000 hours.

The sensor signals are transmitted wirelessly to the evaluation unit in the nacelle. Here, the wireless range is up to 250 meters. With an appropriate number of sensors, the system supports the automatic restart function. The evaluation unit is available as a complete control cabinet solution or as a system for integration.

Innovative retrofit solutions – greater efficiency for wind turbine generators

Ice detection retrofit  

Suitable for simple retrofitting

Thanks to the wireless integration of the sensors, the system is suitable both for new wind turbine generators and for retrofitting into existing systems.

Optimize your wind turbine generators with innovative retrofit solutions. Phoenix Contact is the reliable partner by your side to optimize maintenance services on your generators and to sustain the increase of your yields.

Ice detection topology  

Ice detection topology

Your advantages

  • Reliable ice detection, thanks to coating thickness measurement on the rotor blades
  • Maximum yields with automatic restart
  • Optimized control of the blade heating with temperature measurement
  • Fast commissioning, even as a retrofit solution, with preconfigured components
  • Autonomous operation, because integration into the wind turbine generator controller is not necessary


C6 The Exchange
Calmount Park
Dublin 12
D12 XE18


Rotor blade monitoring system

Complete system for an integrated rotor blade monitoring

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