Fraunhofer Institute for Wind Energy Systems

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.

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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Demo Project for Suction Bucket Foundations

At the Test Center for Support Structures, the tensile behavior of a jacket structure´s suction buckets are investigated within large-scale model tests. Therefore, the effects of extreme wave loads on the steel structure are simulated in a test pit. This installation method is both fast and avoids pile driving noise.



Turbine Certification on a Test Bench

The nacelle of a 3 MW turbine from project partner ENERCON will undergo tests as per the guidelines relevant for certification in the DyNaLab. Realistic loads and interactions between the nacelle and rotor will be simulated using real-time models and control algorithms on the test bench for HiL operation.



The two branches of Fraunhofer IWES are to become independent institutes

The Executive Board and Senate of the Fraunhofer-Gesellschaft have therefore decided to continue the branches of the institute as independent institutes as of January 2018: as “Fraunhofer Institute for Wind Energy Systems IWES“ and “Fraunhofer Institute for Energy Economics and Energy System Technology IEE“.



Prevention of Rain Erosion on Rotor Blades

Within the “BeLeB” project, the effectiveness of known protective mechanisms for rotor blades will be improved. Consequently, less resources need to be invested in repairs and maintenance. The development of reliable forecasting models for erosion damage and the assessment of practice-relevant repair concepts will contribute to this target.

Events and Trade Fairs

Wind Energy Hamburg Trade Fair
Sept. 25th-28th, Hamburg/Germany

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

Latest Publications


3/2017: Optimising offshore wind commissioning logistics
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Brief overview: Focus on Validation



Project of the month: Malibu

Development of a simulation model for wind measurement campaigns employing a LiDAR buoy.

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