VERNEDCT − Resource-efficient power distribution network through DC technology

The VERNEDCT project directly addresses megatrends such as defossilization, urbanization and increased energy consumption in the context of an All Electric Society.

The use of direct current (DC) in distribution grids enables significantly higher utilization of the grid infrastructure and thus reduces the resources required for grid expansion. The project aims to develop the technological basis for a novel, fully converter-fed distribution grid based on DC technology for urban areas, which can take over the tasks of today's grid levels 5−7 (medium and low voltage). The conversion of distribution grids to DC technology is a comprehensive socio-technical transformation.

Therefore, the holistic system approach of VENEDECT includes the complete technical system hierarchy, the stakeholder groups and the elaboration of a realistic transformation process.

Innovations are expected mainly in the following areas:

• New architecture and methods for distribution grid operation
• Methods for optimal component utilization (increasing full load hours) through storage management and power flow control
• Methods for fault clearance through converters and switching devices
• New basic converter types for use in DC distribution networks
• Methods or specification for "plug & operate" control of converters
• Concept of loss-minimized hybrid switchgear for continuous operation
• Transformation path with roadmaps for asset management of distribution grid operators, technology development of manufacturers and communication concepts