Abstract
This report presents the concept and premises of a pilot plant for a megawatt (MW) charging station to be developed in Stord, Norway, under the
MegaCharge project. The charging system comprises containerized charging modules designed for heavy-duty transport, integrating battery energy
storage systems (BESS) that supply power alongside the grid. A detailed technical description of the converters, including their control strategies
and operational specifications, is provided. Additionally, the report explores alternative converter technologies applicable to light- and heavyduty
transport charging systems. It also reviews system architectures and provides insights into ac and dc distribution grids for MW charging stations,
as well as the potential of BESS converters to enhance power quality through active power filtering. The depiction from the pilot plant and literature
review offer a foundation for future research, particularly in evaluating optimal grid configurations and converter topologies for high-power
electric vehicle charging infrastructure.