HusumWind 2019

••• 10••• Innovationen Pionierarbeiter in Sachen Windkraft Prof. Dr. David Schlipf hat Pionier- arbeit im Bereich der Regelung von Windenergieanlagen geleis- tet: Er konnte ein Lidar-Messgerät erstmals an einer echten Anlage testen – und den Anlagen damit das Sehen beibringen. Seit dem Wintersemester 2018/19 lehrt und forscht er am Institut für Wind- energietechnik (WETI) der Hoch- schule Flensburg. David Schlipf hat signifikant da- zu beigetragen, dass Anlagen ei- ne Böe im Anflug erkennen und reagieren können. „Die Anlage kann dann die Rotorblätter aus dem Wind nehmen“, sagt Schlipf. „So wird etwa die Belastung re- duziert. Die Anlage läuft ruhiger.“ Das Auge der Windenergieanlage ist ein Lidar-Messgerät. Schlipf hat während seiner Promotion an der vorausschauenden Regelung ge- arbeitet. „Ich habe es dann in den USA auf einer echten Anlage welt- weit erstmalig testen können. Es war schon Pionierarbeit“, sagt Schlipf. Die Simulation von Wind- kraftanlagen und deren Regelung sind David Schlipfs Schwerpunk- te – schon während seines Studi- ums der Technischen Kybernetik in Stuttgart. Nach der Promotion war er dann als Post-Doc am Nati- onal Renewable Energy Laborato- ry (NREL) in Golden (Colorado) in den USA. Hier beschäftigte er sich mit der Regelung von schwim- menden Anlagen, beispielsweise umWellen vorherzusagen. Web-atlas of wind and wave energy Estimates of the available wind and wave energy are still approximate. It is necessary to know not only the mean values of the wave height or the wind energy flux but also the maximum values, the energy flux dis- tribution over time, the duration of the calm periods and other parame- ters for the design of hybrid power stations (using wind, wave and sun energy). Scientists from the Lomono- sov Moscow State University started creating a web-atlas of available wind and wave energy for the coastal zone of the Russian seas. The basis of the atlas is unique data on the energy po- tential of wind and waves, calculated by using numerical modeling tech- niques. The new GIS server is already working where maps of the spatial distribution of the wave and wind energy, mean values, repeatability and other statistical characteristics will be placed later. Less weight, higher efficiency Researchers are developing ground-breaking materials for rotor blades T he collaborative research project HANNAH of Leibniz University Han- nover is developing and testing new materials for wind turbine rotor blades. Conventional materials made of glass fibre reinforced plastic reach their performance limits when it comes to extending the service life and improving the lightweight properties of rotor blades. The project, launched in March, is coordinated by the Institute of Structural Analysis (ISD) at Leibniz University Hannover and investi- gates the potential of nano-mod- ified materials and hybrid lami- nates for industrial application in rotor blade construction. With regard to service life and fatigue resistance, these material systems are superior to established mate- rials. The Federal Ministry for Eco- nomic Affairs and Energy has pro- vided 3.3 million euros of funding. HANNAH is an acronym for “Challenges of the industrial application of nano- modified and hybrid material systems in rotor blade lightweight construc- tion”. The precursor, LENAH (“Lifetime increase and lightweight design of ro- tor blades through nano-modified and hybrid materials”), focused on the basic development and testing of newmateri- als in order to facilitate the production of larger rotor blades, as well as to uti- lise material more efficiently. Over the next three years, the follow-up project HANNAH will set the course for concrete medium-term applications of the materi- al systems in industrial rotor blade con- struction. Project partners include the DLR Institute of Composite Structures and Adaptive Systems, the Fraunhofer Institute for Wind Energy Systems and a series of industrial partners. The emphasis of the project is on hybrid materials and nano-modified material systems. Hybrid materials are compos- ites made of or assembled from indi- vidual components such as glass fibres, carbon fibres or metal foil. The aim of hybrid lightweight con- struction is to reduce the mass of load-bearing structures or com- ponents as well as to increase the performance. By adding nano- scale particles, the material prop- erties are specifically modified in order to improve the material be- haviour and allow for higher loads. In particular, HANNAH addresses the challenges of processing these new materials in large-scale indus- trial machinery. In the project, the ISD deals with computer-assisted modelling; among other things via material and damage models specifically designed and applied to nano- modified and hybrid material systems. With these methods, researchers intend to gain deeper insights into underlying modes of action and damage mecha- nisms within the analysed material sys- tems. The researchers address the im- pact of industrial production conditions and realistic environmental influences on structural components. Rotor blades have to withstand a lot in operation. Photo: Bredehorn.J / pixelio.de The lenght of Russia’s coastline is about 40 thousand km, so there is huge po- tential for the use of wind and wave energy. The Primorsky Krai region on the photo is located on the Far Eastern coast. Photo: Pavel Anoshin on Unsplash Impressum HUSUMWind 2019 Verlag: CONNEX Print & Multimedia AG Lavesstraße 3 30159 Hannover Telefon: +49 511 830936 Telefax: +49 511 56364608 E-Mail: connex@die-messe.de Internet: www.die-messe.de Auflage IVW-geprüft. Auflagengruppe: G Redaktion: Cyrus Salimi-Asl Verantwortlich für den Anzeigenteil: Tina Wedekind Druck: MAFRA, a. s., CZ - 108 00 Praha 10 MESSEJOURNAL DIE MESSE