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Home/News/Full article: News of 50Hertz
31.01.2020 |
Project News

Combined Grid Solution: Converter in Bentwisch ready for energization

Combined Grid Solution: Converter in Bentwisch ready for energization
© 50Hertz/Jan Pauls

The converter for the interconnector Combined Grid Solution is successfully moving towards the finish line: all components will be energized and put into operation. This includes the converter-components as well as the expansion in the substation in Bentwisch and control technology. The individual commissioning steps ask for a little more time as well as testing the synchronisation of all components.

To Hans-Christian Seeliger, the project leader of the so called back-to-back converter, the energization means a milestone within the complex commissioning procedure: „The whole team on the construction site in Bentwisch, Energinet and all other project partners put in great effort to reach this goal.“

As eastern Denmark and Germany are two different synchronous areas, a frequency transformation is necessary. This will be done by two converters that convert the alternating current from the Nordic synchronous area into direct current and directly back to AC, now adapted to the European synchronous area. The so-called back-to-back converter is being installed in Bentwisch near Rostock, Germany.

Danish Energinet and German 50Hertz establish the world’s first offshore interconnection by using the national grid connections to offshore wind-farms in the Baltic Sea. The project is financially supported by the European Energy Programme for Recovery (EEPR).

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Dr. Danuta Kneipp
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