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ECN: adjustable rotor blades provide up to 13 percent more energy at windmills
By Dimitri Reijerman , Friday, September 12, 2014 11:49, comments: 85 , Views: 7891 • Feedback
Energy research Centre of the Netherlands, a computerized control system for wind turbines developed in which the three rotor blades can be individually. Adjusted Due to reduced load on the blades of wind energy can be generated. To 13 percent
The computerized control system is by ECN developed in collaboration with wind turbine manufacturer XEMC-Darwind. The system measures the wind load on the blades continuously. On this basis, the position of each of the three blades set. Thanks to the so-called individual pitch control system is the wind load reduction on the blades.
According ECN through the system larger offshore wind turbines can be built with 6.3 percent larger blades. This may rise by 13 percent, the amount of energy generated per mill a profit that is higher than the figures previously rolled out simulations. In addition, the lower wind pressure ensures that the mills can be. Lighter and thus cheaper performed
ECN has its own system tested in a test environment in the Wieringermeer. The mill used a XEMC Darwind XD-115 has a rotor diameter of 115 meters. The research institution states that the system can be used not only for wind turbines at sea but also mills that have been placed on land.
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