Validation of Wind Energy Systems

The institute offers turbine manufacturers, suppliers, wind farm operators and power authorities industry relevant research services and target-oriented collaboration concerning the complete spectrum of technical wind energy utilization issues.

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Research turbine AD 8-180

Comparison of field survey results with the data obtained on the large-scale test rigs will significantly expand the opportunities for further optimization of measuring and testing methods as well as risk mitigation for new turbine designs.

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Certification of Electrical Characteristics of Power Generating Units

Significant advances have been achieved in the testing of gears, bearings, couplings, main shafts, generators, and converters through the replication of real operating conditions with special grid scenarios such as extreme and fatigue loads. An accelerated certification process makes it possible to schedule the launch of a pioneering new turbine concept precisely.

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Accredited Rotor Blade Testing

Fraunhofer IWES sueccssfully passed the accreditation audit for “full-scale structural testing” (IEC 61400-23:2014) of DakkS ILAC. Advancing testing methods further is a permanent goal and will be intensified over the next years: technical performance and efficiency will be remarkably improved.

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Measurement of Offshore Site Conditions

Exact knowledge of the site conditions is of the utmost importance when planning and erecting offshore wind farms. In order to be able to document this with a high level of accuracy, Fraunhofer IWES has developed innovative measuring technology, which is optimized for the requirements of offshore wind energy use and employed all over the world.

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Experimental Validation of Support Structures

Support structures form a central aspect of the entire wind turbine system from both a technical and an economic perspective - along with the installation expenditure, they account for up to a quarter of the total investment costs. Reliable, validated models for support structures and their interactions with the substrate and turbines are therefore essential for the purposes of cost optimization and reducing the technical/ economic risk for every onshore or offshore wind turbine construction project.

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Suction Buckets: Large-Scale Test Reveals Increased Tensile Capacity During Storms

Fraunhofer IWES tested two large-scale suction buckets in a 1:5 scale in early 2018. The physical experiments at the Test Center for Support Structures in Hanover (TTH) are the first of their kind in Germany. Within the experimental work the IWES researchers were able to quantify an effective temporary increase in tensile capacity during storms.



BSH Commissions IWES to Conduct Preliminary Assessment of Seabed

The German Federal Maritime and Hydrographic Agency (BSH) has selected IWES, among others, to conduct initial exploratory work for the first bidding round. Researchers will compile 3D seabed models based on geophysical data. The multichannel seismic survey method delivers high-resolution data for soil layers at all relevant depths for wind turbine fundaments.



Trailing edge: more realistic load scenario for design critical structures

Sub-component trailing edge testing has the potential to become established as an addition to the certification-relevant full-scale blade test. Any relevant load scenario can be simulated and critical blade details can come under scrutiny. Within the EU project “IRPWind” the potential was defined.



SmartBlades2 Rotor Blade Passes Extreme Load Test

For the very first time, a rotor blade with bend-twist coupling was testedat Fraunhofer IWES´ rotor blade test rig. Although the setup for the rotor blade torsion test is similar to the scenario for static testing, it is in fact more complex as the additional deformation has to be measured precisely.

Events and Trade Fairs with IWES contribution

Int. Conference Wind Turbine Bearings

29-31 May 2018, Hamburg, Germany
Organizer: IQPC - online agenda

2nd Annual Wind Turbine Icing and Ice Prevention Forum
Nov. 7-8th, Berlin/Germany
Organizer: BIS Group - online agenda

Wind Energy Hamburg Trade Fair

Sept. 25th-28th, Hamburg/Germany
Hall B6, booth 464

Offshore Wind R&D Conference
Nov.14-16th, Bremerhaven/Germany
Conference website

Latest Publications

Science Daily

3/2018: Intelligent rotor blade optimizes wind energy utilization
article on external website

4/2018: Fraunhofer IWES to Test Soil in German Offshore Wind Zones
article on external website

bine info

14/2017: Rain can damage rotor blades
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New project: TopWind

Active influencing and control of the flow dynamics of rotor blades has the potential to increase the energy yield of wind turbines. The effect induced by fluid actuators integrated in structures is determined and considered in relation to the additional costs.


"Towards an advanced design of XXL mono-piles"

Interview with Dr. Jan Dührkop, Chief Consultant Ramboll, and Severin Spill, Fraunhofer IWES

Processes across different sites conform to DIN EN ISO 9001:2008 standards in the areas of product development up to the prototype stage, technology development and optimization, technology assessments and studies as well as trials in demonstration centres

Accredited due to DIN EN ISO / IEC 17025:2005: mechanical and thermal tests for determining the physical properties of glass fiber and composite materials; mechanical load measurements of wind turbines