Siemens Energy announced the opening in Denmark 2 major trials in R&D centers in the field of wind energy technologies, which together constitute the largest complex of its kind in the world in terms of size and scope.
The new test center in Brande is equipped test benches of the main components of Siemens wind turbines, including generators, major media and complete nacelles. In Aalborg, 7 test benches allow the realization of full-scale tests on rotor blades, including the largest blade in service in the world, with a length of 75 meters.
“The investments we make today in the field of testing guarantee savings for our customers tomorrow,” said Felix Ferlemann, President of the Turbine Division of Siemens Energy. “The comprehensive tests we carry out all the main components of a wind allows us to reduce significantly the risk of technical problems on site. Our ongoing commitment in the field of R & D and testing allows us to deliver the most innovative and reliable wind turbines.”
The two test centers in Denmark, more than 27,000 m2, allow tests to be carried indoors. According to Siemens, the test lifts Brande benches are “among the most advanced in the industry (…) They can carry out tests on the platforms to the D6 direct drive range, which is currently the largest wind Siemens, with a rated six megawatts. Tests on even greater wind capacity are also possible.”
Facilities in Aalborg will enable the realization of comprehensive tests on the blade B75 – a length of 75 meters – and even larger blades. You should know that the wind turbine blades are currently the largest composite structure in the world. In comparison, the wing of an Airbus 380 is less than half of the blade B75.
In addition, accelerated wear testing programs (Highly Accelerated Lifetimes Tests – HALT) Siemens for all major components of the platforms of its turbines with direct drive and gear drive will be implemented. In accelerated wear tests, which can last up to 6 months, Siemens submit prototypes to well above those to which they are exposed in normal use during their life cycle on-site loads.
“During HALT, we apply the highest load for a short time, since these costs have the greatest impact on the wind,” said Felix Ferlemann, president of Siemens Wind Power. Thus, full-scale prototypes will undergo larger oscillations they suffer on-site by vertical deflections for 2 million cycles vertically and then again for 2 million cycles horizontally.