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HVDC HelWin1 : ウィキペディア英語版 | HVDC HelWin1
HVDC HelWin1 is a high voltage direct current (HVDC) link built to transmit Offshore wind power to the power grid of the German mainland. The project differs from most HVDC systems in that one of the two converter stations is built on a platform in the sea. Voltage-Sourced Converters are used and the total cable length is 130 km. The project was completed and handed over to its owner, TenneT, in February 2015.〔(Siemens Hands Over HelWin1 to TenneT ) Offshore Wind.biz, 9 February 2015. 〕 ==Context== HelWin1 is part of an ambitious programme of providing grid connections to offshore wind parks off the coast of Germany, in the German Bight, as part of the German Energiewende (Energy Transition) programme. HelWin1 forms part of the ''HelWin cluster'', named after the German island of Heligoland. HelWin1 has been built to transport power from the Nordsee Ost and Meerwind Süd/Ost wind parks. HVDC has been chosen for most of the grid connections because the relatively long distance involved – both from the wind park to shore and from the shore to the nearest suitable connection point to the onshore grid - makes conventional alternating current transmission uneconomic.
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