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    When wind energy goes to school

    Pupils have now gone back to school in all of Germany's federal states, and the curricula for the new school year have been set. Experts led by the Independent Institute for Environmental Issues (UfU) have investigated how renewable energies can be better integrated into lessons as a subject area. For this purpose they have developed teaching materials and analysed the benefits and potential of wind turbines and photovoltaic systems at educational facilities.  more...
     
    News 10.05.2017

    40 years of energy research

    Last week, on 2nd May 2017, the German Federal Minister for Economic Affairs, Brigitte Zypries, opened the celebration for the anniversary of “40 years of energy research programmes in the German Federal Government” in the historic conference rooms of the German Federal Ministry for Economic Affairs and Energy in Berlin. She emphasised that research and development are important components in the large modernisation and investment project for energy transformation in Germany.
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    New wind energy test field in southern Germany

    Because of the pronounced terrain structures, wind farms in low mountain ranges have to cope with more turbulent wind conditions than in lowland areas. These meteorological conditions mean that development and maintenance costs have been higher up to now in landlocked mountainous areas, while precise profit forecasts are more difficult. A new wind energy test field belonging to the southern German research group WindForS now aims to close the gaps in meteorological knowledge and optimise the wind turbine engineering.  more...
     

    Impact of defects can be calculated

    Large wind turbine components are made of cast iron with spheroidal graphite. During their production, however, chemical reactions can cause defects. These casting defects are called dross and their impact on component lifetime has, to date, only been evaluated using assumed material characteristics. There is a measure of uncertainty involved in providing evidence of their occurance. New non-destructive test methods should now be able to evaluate dross more reliably.  more...
     
    Projektinfo 16/2016

    The smarter blade gives in

    Onshore and offshore, rotor blades need to be able to withstand rapidly changing wind directions and variable wind intensities. But how can rotor blades be better equipped for such situations than previously? Researchers have designed so-called smart blades that can adapt to changing wind conditions passively or with active components – and at the same time maximise the energy yield of the wind turbine.  more...
     

    It's turbulent offshore

    In offshore wind farms, the front turbines receive the most wind. They cause kilometre-long vortexes with slower wind and increased turbulence, which affects the downstream wind turbines. Previous methods that mimic such wakes are inaccurate or require considerable computation. In order to better understand these wake effects, scientists have therefore developed a new model and software to help optimise farms.  more...
     

    Measuring wind potential in low mountain ranges

    One of the highest meteorological masts in Europe is situated on Rödeser Berg, a hill near Kassel. The research facility with its measurement devices records the wind conditions up to a height of 200 metres. The aim is to measure the impact of forest areas and low mountain ranges on the wind profile and flow characteristics. The results will help to improve the meteorological models for assessing sites, will make it possible to estimate the loads on individual system components in more detail and will help to further develop the laser-based LiDAR method.  more...
     
    News 17.08.2016

    Rotor blades with elastic front edges

    During the course of their operation, countless raindrops land on the leading edge of the rotor blades used on wind turbines. Despite the special coatings and films applied to these edges, this damages the surface. Over time, this causes erosion to the leading edge of the blades. A research project is therefore testing a new approach: in future, elastic leading blade edges could solve the problem.  more...
     
    News 28.04.2016

    Mechanical mass production of rotor blades

    The rotor blades of wind turbines are still mostly made by hand. This is due to the low piece numbers involved. So how would it be possible to produce them faster, cheaper and with a greater degree of precision? Automated production is now possible in the BladeMaker factory in Bremerhaven. Eight process steps are combined into a single step. The production facility has now been inaugurated.  more...
     

    BINE interview with Professor Dr. Siegfried Heier

    Further developments of converter technology will be necessary for wind turbines to support any grid improvements. Decentralised coupling and decoupling of power ought to be possible in the future high-voltage direct current (HVDC) electric power transmission system. In this BINE interview, Professor Dr Siegfried Heier lists future focal points of technological development in the wind energy sector.  more...
     

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24.10.2017 - 25.10.2017
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Ausfallverhalten von Windenergieanlagen
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