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HVDC grid connection of offshore wind farms, Germany
The offshore wind farms in the German North Sea are linked under various connection projects to the German EHV grid. Each connection project comprises an offshore platform with converter on the high seas with connection cables to the wind farms, HVDC cable links to the AC/DC converters on land employing voltage source converter (VSC) technology, and switchgear as well as operating and network control systems at sea and on land. Fichtner assists in technical handling and project management.
Project governance services
Time scheduling/expediting and budgetary planning/control
Site supervision and coordination of the technical project team in the field
HSE and occupational safety coordination on site
Assistance during trials and commissioning
Approx. 7 GW connection and infeed power
380 kV outdoor switchyards for connection to existing transformer substations
250 kV, 300 kV, 320 kV DC onshore and offshore cabling
Offshore platforms with DC/AC conversion and 155 kV HVAC switchgear
155 kV HVAC cabling from the offshore platforms to the connection points of the offshore wind farms