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Thursday, 24 February 2011

Higher Energy Yield with Torque Vectoring Gears
Feb 23, 2011

Wind turbines have a problem: Depending on the wind's force, the rotational speed of the turbine and thus of the generator changes. However, alternating current must be fed into the grid with precisely 50 (or 60) hertz. Typically the generated alternating current is first rectified and then transformed back to alternating current of the required frequency. Scientists at the Technische Universitaet Muenchen, Germany, have now developed an active transmission that makes this double transformation superfluous.
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