| http://www.w3.org/ns/prov#value | - hich are caused to rotate upon impact of wind, wherein in particular the generator of the wind turbine is connected to a wind turbine converter for converting a variable frequency AC power stream or voltage to a fixed frequency AC power stream or voltage, wherein the AC-voltage has a predetermined frequency corresponding for example to 50 Hz or 60 Hz) connected to a AC-DC converter (an electronic/
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